A man arrested on the M6 motorway in the wake of the car bomb attacks on London and Glasgow has been charged with conspiracy to cause explosions.
Dr Mohammed Jamil Asha, 26, is accused of conspiring with Bilal Abdullah, Kafeel Ahmed and "others unknown", Scotland Yard said.
He remains in custody at Paddington Green police station and will appear at City of Westminster Magistrates' Court.
Dr Asha, 26, of Newcastle-under-Lyme, Staffordshire, was arrested in a police swoop while travelling north on the M6 motorway in Cheshire on June 30. His wife Marwa Asha, 27, who was arrested at the same time, was released without charge last Thursday.
Iraqi doctor Bilal Abdullah was the first person to be charged over the London and Glasgow car bomb attacks. He was arrested after a flaming Jeep was driven into the doors of the arrivals hall of Glasgow Airport.
Abdullah, who is also accused of conspiring to cause explosions, is due to appear at the Old Bailey on July 27.
Kafeel Ahmed, 27, is in a critical condition with serious burns in a specialist unit at Glasgow Royal Infirmary. Ahmed, who was also arrested at Glasgow Airport, was described earlier this week as in an "extremely poor physical state".
Asha is the fourth person to be charged in connection with the terror plot.
Dr Sabeel Ahmed, 26, the brother of Kafeel Ahmed, is charged with possessing information which could have prevented an act of terrorism. He appeared at City of Westminster magistrates' court on Monday and was remanded in custody.
A further man, Mohammed Haneef, 27, has been detained in Australia for immigration offences after being charged in connection with the plot.
