A second man has been arrested in connection with a series of fires at properties linked to the Prime Minister.
The 26-year-old was arrested around 1.45pm on Saturday, May 17 at London Luton Airport on suspicion of conspiracy to commit arson with intent to endanger life.
The arrest was made by counter terrorism officers from the Eastern Region Special Operations Unit. The man has been taken into police custody in London.
The arrest relates to three incidents - a vehicle fire in NW5 on May 8, a fire at the entrance of a property in N7 on May 11 and a fire at a residential address in NW5 in the early hours of May 12.
A police officer is seen in Kentish Town, north London. Police are investigating a fire at Sir Keir Starmer's house in north LondonPAAnyone with information that could assist the investigation should call police on 101 quoting CAD 441/12 May.
Roman Lavrynovych, a 21-year-old Ukrainian man, has already been charged with three counts of arson with intent to endanger life in connection with the fires.
Lavrynovych, of Sydenham, south-east London, denied arson in a police interview.
He appeared in court on Friday and was remanded in custody until a further hearing at the Old Bailey scheduled for June 6.
