Human remains found in two suitcases near the Clifton Suspension Bridge in Bristol are believed to be those of two men
Police believe the man they're hunting had travelled from London before taking a taxi to the bridge
A crime scene is now in place in Shepherd's Bush, London and the Met has taken over the manhunt
An image of the man they want to speak to has been issued and he remains at large
The Met has urged anyone who believes they see him, or who knows of his whereabouts, not to approach him but to call 999 immediately
We are bringing this live page to an end.
You can read the news article which includes all of the details of what happened today here.
We will bring you all the updates as the story develops across BBC radio, TV and online.
Harry Low
BBC London News
The Metropolitan Police has arrested a 36-year-old man at a property in south-east London.
He is not the man police have issued images of in their appeal, a force spokesperson said.
He was arrested in Greenwich early on Friday and remains in custody.
Joe Inwood
Reporting from Shepherd's Bush
It isn't clear if the property being searched on Scott's Road is connected to the man police are searching for - or to the victims found in the suitcases.
More locals have been turning up, mostly returning from a day at work to find their street sealed off.
Miriam, a young woman who lives nearby, heard a helicopter last night. "It was up for half an hour or so," she said.
"It's scary, obviously. It's a calm, residential area normally. We walk to and from work, especially at night. So it's really scary," she said.
Police discover dumped suitcases contain two bodies
Avon and Somerset Police held a press conference near the Clifton Suspension Bridge in Bristol on Friday afternoon.
Acting Bristol Commander Vicks Hayward-Melen revealed that another crime scene had been located in Shepherd's Bush in London.
She said detectives believed that the suspect had travelled from London and that officers believed the dumped suitcases contained two bodies.
The investigation has been handed over to the Metropolitan Police.
Victoria Hollins
Reporting from Shepherd's Bush
The sound of a helicopter vibrates through the streets where the focus of this investigation has shifted for police and press alike.
I’ve had a chat with people nearby and as expected they’re pretty shaken up by the thought such a grisly incident could have happened close to their homes.
This is an area of close-knit terraced houses and blocks of flats. There’s just a general feeling of upset in the community.
I’ve just spoken to Meghdad and his family who are living in a flat on Scotts Road. He told me they were woken by the noise of police helicopters around 2am.
Occasionally locals have stopped to ask officers on duty what’s going on here but are told "this is an active investigation".
The Met says it is putting extra officers in the area to reassure residents.
Dawn Limbu
BBC News, Bristol
Police at the crime scene in Shepherd's Bush
Police believe the man they are hunting had travelled from Shepherd's Bush in west London in a taxi to the Clifton Suspension Bridge in Bristol.
The police operation, now being led by London's Metropolitan Police, is centred on Devonport Road, just under half a mile from Shepherd's Bush Market Tube station.
Forensic officers have entered a property on a road that was sealed off earlier today.
Manhunt moves to London as remains found in suitcases in Bristol
Anthony Priest, 85, a resident of the Scotts Road area in Shepherd's Bush, where police have focused operations, says: "I heard them all tearing down here in the early hours of the morning. "I heard a police car coming down, with lights flashing."
He says they arrived at about 3:30am.
Joe Inwood
Reporting from Shepherd's Bush
Blue police tape has sealed off Scotts Road in west London, as forensics officers search a property on the leafy street.
There are a steady stream of police arriving at the scene, the second to have been opened after the discovery of human remains in Bristol
There are also a number of local residents arriving, distressed to think that their area has a connection to the discovery of the bodies.
One woman, holding a young baby, looked visibly shaken.
Forensic officers arrive at the scene of the crime
Our correspondent, Dan Johnson, traced the route which police believe the suspect took on Wednesday night.
The man, who police want to speak to in connection with the incident, fled before officers arrived at the scene.
In the most recent update from police, they said the suspect is no longer believed to be in the Avon and Somerset area.
You can read more here.
Clifton Suspension Bridge: Visiting the scene where bodies were dumped on a bridge
Police activity is taking place at an address on the corner of Scotts Road and Devonport Road in London's Shepherd's Bush. Officers have confirmed this crime scene is related to the hunt for the wanted man.
The crime scene is located on Devonport Road on the corner of Scotts Road in Shepherd's Bush
Police officers at the crime scene on Scotts Road
Shaun Dacosta
BBC Newsbeat in Bristol
Joely Rendle works in a café nearby and says it’s had an impact on her personally.
“I live here and am working in the area. It’s pretty scary and I don’t feel as safe as I did before,” Joely, 24, tells BBC Newsbeat.
She describes what’s happened as “unsettling”.
“Everyone is feeling pretty shocked, you don’t expect that to happen here, so close by," she added.
Speaking at afternoon's press conference, Acting Bristol Commander Vicks Hayward-Melen said the suspect had travelled from London before leaving the suitcases in Bristol.
"It is believed the man wanted in connection with this incident had travelled to the Clifton area of Bristol from London earlier on Wednesday, before taking a taxi to Clifton Suspension Bridge where the suitcases were unloaded," she said.
This afternoon's press conference has revealed new information that moves this investigation on.
Police confirmed that the suspect travelled from London to the Clifton area of Bristol on Wednesday, before taking a taxi to Clifton Suspension Bridge.
There is now a second crime scene in Shepherd's Bush in London, and the investigation has been handed over to the Metropolitan police.
Forensic post-mortem examinations are still being carried out on the bodies in the suitcases - but they are believed to be of two adult men.
Avon and Somerset Police said there is no information to suggest that the suspect is still in the Avon and Somerset area.
Police will continue to carry out patrols in Clifton and Leigh Woods over the next few days.
Officers are looking for a man who was seen "acting suspiciously" on Clifton Suspension Bridge late on Wednesday.
He is described as black, with a beard. He was wearing a black Adidas baseball cap with a white motif, black jeans, a black jacket with a motif on the chest and black trainers with thick white soles. He is also believed to have been wearing a gold earring and was carrying a black backpack.
Acting Bristol Commander Vicks Haywood-Melen said there is no information to suggest that the suspect remains in the Avon and Somerset area.
Image source, Avon and Somerset PolicePolice have released images of a man they are looking for
Acting Bristol Commander Vicks Haywood-Melen said the remains in the suitcase are believed to be of two adult men.
"We're able to confirm forensic post-mortem examinations are still being carried out on the remains found within the two suitcases, but they are believed to be of two adult men," she said.
"It's important to stress that they have not yet been formally identified and efforts to locate and speak to their next of kin are being prioritised."
Deputy Assistant Commissioner Andy Valentine has reassured residents living in Clifton and Shepherd's Bush.
“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," she said.
“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.”
Deputy Assistant Commissioner Andy Valentine, who is leading the investigation for the Met, said: “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 and I would urge anyone who believes they see him, or who knows of his whereabouts, to call 999 straight away.
"Do not approach him."
