Police say they found Daniel Khalife in north-west London after searching for him for four days.
Scotland Yard said that the 21-year-old former soldier was taken into custody at 10:41 BST after he was pulled off a bicycle on a canal bank in the Northolt area.
He was kept about 14 miles from Wandsworth jail, from which he escaped early Wednesday morning.
The Met had been looking at CCTV images and searching areas in west and south-west London with a helicopter.
Police thanked people who had called to report sightings and said they’d gotten over 100 calls.
The force said that Mr. Khalife is in police arrest right now.
He is accused of trying to spy for an enemy country, which is thought to be Iran. He is also accused of trying to get information that could help someone commit or plan an act of terrorism and of planning a fake bomb scam.
Mr. Khalife was being held at Wandsworth until his trial in November. In January, he had been rejected bail at a court hearing.
His escape started in the jail kitchen, where he worked, when he tied himself to the bottom of a food delivery truck.
The head of Counter Terrorism Command, Cdr. Dominic Murphy, told reporters that Mr. Khalife was caught because he was thought to be illegally free and to have gotten away from legal custody.
“He was actually caught by an officer who wasn’t wearing a uniform. At the time, he was riding a pedal cycle, which is also called a “pushbike.” That officer pulled him off the pushbike.
On Friday, police said that Mr. Khalife was seen coming out from under a truck at Wandsworth Roundabout soon after he got away.
They were willing to pay up to £20,000 for information that led to his arrest.
The Met said early Saturday morning that it was doing “intensive search activity” in and around the Chiswick neighborhood in west London, where people had seen him.
One woman who lives in Chiswick told BBC News that she thinks she quickly spoke to Mr. Khalife on Friday morning while he was sitting on a bench in Chiswick House Gardens.
She said that he said he had just gotten out of the Army after commenting on how hot it was. She said that he was kind and sweet, and that he was nice to her dog.
Police first said that Mr. Khalife was being held in the Chiswick area, but later said that he was actually being held in Northolt, which is in north-west London and is several miles away.
Cpl. Murphy said, “The investigation really went in a different direction last night when we did a search in the Richmond area based on information we had gathered.”
“We didn’t find him at that search, but over the next hour or two, we got a number of calls from the public telling us where they had seen him.”
Rishi Sunak, the prime minister, said he was “very happy” that Daniel Khalife had been caught, and he thanked the police and the people for their help in finding him.
The PM also said at the G20 meeting in Delhi, “The justice secretary has started an investigation into how he got away, and that work will continue.”
Alex Chalk, who is in charge of the Justice Department, said that he will leave “no stone unturned” when he looks into jail security and how prisoners are put into groups.
Shadow Home Secretary Yvette Cooper wrote on social media, “We need to know how on earth a prisoner charged with terror and national security crimes could have gotten out of jail in this way.”
What does Daniel Khalife have to answer for?
Daniel Abed Khalife joined the Army in 2019 and was stationed at MoD Stafford, also called Beacon Barracks, when he went missing on January 2, allegedly after making a fake bomb threat.
At a later court hearing at Westminster Magistrates’ Court, it was said that he put out fake devices “to make someone think the item was likely to explode or catch fire.”
A court heard that he was found “in or near his car” on January 26 after “active efforts to find him.” After two days, he was sent to Wandsworth.
Mr. Khalife was supposed to go to court on November 13 to answer to charges like planning a terrorist attack and giving information to an enemy, which is against the law under the Official Secrets Act.
At the Old Bailey in July, he said that the charges against him were false.
