The police search for terror suspect Daniel Khalife is now centred on Chiswick in west London following confirmed sightings overnight.
The Metropolitan Police said it had received calls from members of the public.
Armed police officers have been searching the area, with police dogs on the scene.
Officers have also been stopping and checking cars, and have been seen searching in vehicles boots as well as asking residents for proof of ID.
A police boat has also been on the River Thames close to the roads.
Police remain in the area, and say they will be carrying out “intensive” searches throughout the day.
Khalife is believed to be wearing a black baseball cap, black t-shirt and dark-coloured bottoms, and carrying a small bag or case.
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The force said: “We urge members of the public in that area to remain vigilant and call 999 immediately should they see Khalife, or if they have any information that could assist the search.
“Whilst we advise members of the public not to approach Khalife if they see him, we still assess that he does not pose a threat to the wider public.”
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Nationwide manhunt
The nationwide manhunt is now entering its fourth day, after the former soldier escaped from Wandsworth Prison on Wednesday morning.
He made his getaway by holding on to straps underneath a food lorry, after leaving the prison kitchen in a cook’s uniform.
It comes as the 21-year-old’s family urged him to “give himself up“.
On Friday, Scotland Yard revealed there was a confirmed sighting of Khalife about a mile away – shortly after the breakout.
Detectives have also been scouring Richmond Park in south west London for signs of the fugitive, not far from the Category B prison.
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£20,000 reward offered
Commander Dominic Murphy, who leads the Met’s Counter Terrorism Command, has said the confirmed sighting on Wednesday “could be very significant”.
A member of the public had seen Khalife climb out from under the lorry, and walk towards Wandsworth town centre.
Mr Murphy said the force is currently working on “lots of leads” after receiving over 100 calls from the public – and a reward of £20,000 is now being offered for information that leads to his arrest.
The former soldier was awaiting trial after allegedly planting a fake bomb at an RAF base and gathering information that might be useful to terrorists or enemies of the UK.
He was discharged from the army in May.
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