Homemade bomb explodes on packed London subway train, injuring 18 people.
Police say they were investigating it as a terrorist attack.
Several people were injured at a London underground station on Friday, after an explosion on a rush hour commuter tube train.
The London Ambulance service said 18 people had been taken to a number of different hospitals on Friday morning, while no-one is believed to have suffered “serious or life-threatening” injuries.
London police said they were treating the blast at Parsons Green tube station in West London as a terrorist incident.