COPS have released a man after he was arrested in a probe into human remains found in suitcases on Clifton Suspension Bridge.
Police yesterday confirmed the body parts "belong to two adult men".
A crime scene was also set up at an address in Shepherd's Bush - with the arrest of a 36-year-old man made in the capital's Greenwich area.
CCTV grabs of a man were released yesterday by Avon and Somerset Police but investigators confirmed the man who was arrested is not the same man from the pictures.
The Met Police have since confirmed that the 36-year-old man arrested in connection with the investigation has been released without charge.
But officers are still seeking the man whose image was released previously.
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He has now been named as 34-year-old Colombian national Yostin Andres Mosquera.
The force originally reported the man was 24 years old before amending his age to 34.
Deputy Assistant Commissioner Andy Valentine said: “This is a fast moving enquiry with detectives in London and Bristol actively pursuing a number of lines of enquiry.
“Locating Yostin Andres Mosquera, however, is the priority and I appeal to anyone with information on his whereabouts to get in touch.”
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Police were seen at the property in Scotts Road, Shepherd's Bush, west London, for several hours on Friday, before the Met revealed that more body parts had been found, believed to be of the same two victims.
Officers said they had found human remains which are in the process of being removed.
They were both known to Mosquera, detectives said, as they appealed for information on the suspect's whereabouts.
Additional post-mortem examinations will be arranged as soon as possible, the cops added.
Officers believe that the remains are connected to the human remains found in Bristol, and that there are still two male victims.
Scotland Yard previously said it has taken over the manhunt to find the suspect, who is believed to have left Bristol since the incident.
A Met Police spokesperson said this evening: "A man, aged 36, was arrested at an address in Greenwich early on Friday, 12, July.
"He has been taken into custody where he remains. This is not the same man we are appealing for."
It comes as police have been seen searching a property in Shepherd's Bush, west London, this afternoon.
The force confirmed the search was linked to the investigation but would not confirm whether the address was linked to the suspect or the victims.
Neighbours named the men who lived at an address that police were searching on Friday in Scotts Road as Paul and Albert.
Rebecca, who lives opposite the couple, said: “I’ve been here for 26 years so they’ve been here my whole life.
“They seemed quiet, they seemed happy, cheerful, waving at everyone. The smaller one, Albert, rode a bike.”
She said police “smashed the door down” at the address early on Friday morning.
“All I heard was that this morning my mum was up at 4.30am,” she said.
“My mum woke up to dogs barking, and she came out and there’s policemen dressed in riot gear going into the building.”
Martha, a resident who lives next door to the two men, said: “I have been living here for 11 years.
“They were a very nice couple, very polite, nice, quiet.”
Another resident, who did not wish to be named, said: “One’s called Paul, they were just lovely guys.”
The suspect wanted over the case is thought to have travelled from London to Bristol on Wednesday before taking a taxi to the landmark.
He is alleged to have unloaded the suitcases before leaving the scene at just before midnight - minutes before cops arrived.
Cops believe the remains are those of two adult men, though their identities remain unknown.
The results of one post-mortem examination were “inconclusive”, while a second post-mortem examination is ongoing.
The suspect in the CCTV is described as Black with a beard, and was dressed in head-to-toe black with an Adidas baseball cap, jeans and a jacket.
He wore gold earrings and black trainers with thick white soles, and also had a black backpack.
Witnesses have described how the man, who arrived at the bridge in a taxi, was challenged after the “tatty” suitcase was seen to be leaking blood.
He left the scene, reportedly chased by a cyclist, and made off in the direction of Leigh Woods, leaving the suitcase behind.
Police also confirmed that a taxi had been seized and said the taxi driver was helping officers with the investigation.
The Met's Deputy Assistant Commissioner Andy Valentine said earlier today: "Over the last 48 hours we have been working extremely closely with colleagues from Avon and Somerset.
"This work leads us to believe the man we need to speak to travelled to Bristol from London earlier on Wednesday evening.
"We are drawing on resources from across the Met to find and apprehend the suspect.
"I would urge anyone who believes they see him, or who knows of his whereabouts, to call 999 straight away. Do not approach him.
"We recognise this has caused significant concern to residents in the Clifton area and will cause concern among those who live and work in West London.
"Extra officers will be on patrol in the area over the coming days and I would encourage anyone with any concerns to speak to them."
The Clifton Suspension Bridge opened earlier today after cops finished combing it for evidence.
Witness Giles Malone said he and his wife were waiting for a taxi outside a pub when they saw two men "lifting these suitcases" at the bridge.
Giles, who lives in Florida, USA, said a woman, who appeared to be a passerby, joked with the two men about what was in the bags.
He told : "My wife and I were watching the football game with my dad in Clifton Village and we left my dad's flat at 10.30pm after the football game.
"We were waiting for an Uber on the corner by the pub and we were stood there waiting for our car.
'"A man and another man got out of another car across the street and they were lifting these suitcases across the road for some reason, right by us.
"The lady who was helping them said 'these are the heaviest suitcases I've ever lifted. What's in them? bodies?'.
"We sort of semi-joked about it but they didn't say anything."
When he heard the bridge was closed yesterday, he wondered if it was all connected.
"I immediately looked at my wife and said: 'I wonder if that is a coincidence from last night?'," he said.
He is now talking to cops about what he saw.
He said the men "didn't really say anything" but were "just struggling with these cases".
"I think this lady must have helped them because she made that comment," he added.
Another eyewitness said he was walking with his girlfriend nearby at the time.
“There were two suitcases, one left on the bridge with what appeared to be blood leaking from it, the other case was on the road just after the bridge on the Leigh Woods side,” he told .
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“There was blood on the floor along the bridge. The man who had the cases ran from the bridge staff and I saw him being chased by a member of the public on a bike.
“The cyclist followed the man, who was wearing a dark or black clothing, and was seen running down Burwalls."