A man has been arrested at Heathrow while attempting to flee the country after four men were hit by a car in west London, leaving two critically injured. The pedestrians were hit by a car in Kingsley Road in Hounslow just before 2.43am on Sunday. The men, all in their early 20s, were taken to hospital, where two remain in a critical condition. Two others have been treated for non-life-changing injuries. The driver of the car did not stop at the scene, police said. Detectives launched an investigation and arrested a 20-year-old man at nearby Heathrow airport on suspicion of attempted murder just before 7pm. Police said he had booked a flight and was planning to leave the country. A second man was arrested nearby on suspicion of assisting an offender. DCI Andy Thrower said: “This was a serious incident that will have shocked the local community. Two men are in hospital fighting for their lives and our thoughts are with them and their families. “Officers have acted without delay to identify a suspect. The arrest – which happened as the man was trying to fly out of the UK – is a timely and crucial development in this ongoing investigation. “We will continue at pace as we work to establish what happened and to get justice for the victims. I would continue to urge anyone with information to come forward.” Anyone with information can contact police by calling 101, or tweeting @MetCC with the reference 921 of 25 September or call the independent charity Crimestoppers, anonymously, on 0800 555 111.