Detectives investigating an explosion on a London Underground train which sent passengers and those in the vicinity fleeing in fear have made two arrests.

Latest: All but one of those injured in the explosion at Parsons Green on Friday morning have been discharged from hospital, a spokeswoman for NHS England said.

LATEST: An armed police operation is under way by counter-terror officers investigating the Parsons Green bombing.

The Parsons Green station bomb is suspected of being an explosive which has previously haunted the London transport network, known as the "Mother of Satan"

A potential network of terror plotters behind the Parsons Green bombing is being hunted by police as the UK braced for a further attack.

Parsons Green station has re-opened after a bomb was detonated on a London Underground train, injuring 29 people.

Theresa May has raised concerns with Donald Trump over his claim that the perpetrators of the Parsons Green Tube bombing had been "in the sights" of Scotland Yard.

A manhunt has been launched after a bomb was detonated in a terror attack on a packed London Underground train.

The burns suffered by victims of the Parsons Green terror attack will depend on how close they were to the explosion, an expert has said.

Donald Trump has threatened to spark a new row over intelligence-sharing between Britain and the US after he claimed the Parsons Green Tube bombers had been "in the sights" of Scotland Yard.

Supermarket Lidl has offered to assist a police investigation into the terrorist incident on the London Underground, after one of its bags was apparently used to hold the improvised bomb.

Londoners have offered to "put the kettle on" for people affected by the explosion in Parsons Green.

Sadiq Khan has appealed for calm following the Parsons Green terror incident, saying London "will never be intimidated or defeated by terrorism".

Terrified passengers described seeing victims covered in blood as people scrabbled to evacuate after an explosion on a London Underground train.

The final moments of pedestrians mown down by terrorists in the London Bridge attack have been revealed at the inquests into their deaths.