Explosions and gunfire have been heard during a police operation in Brussels as investigations continue into Tuesday's bombings.
Witnesses described what sounded like two blasts at the start of the raid in Schaerbeek on Saturday, where a suspect was "neutralised" and detained by police.
Belgium's public broadcaster, RBTF, reported that the man was carrying a bag believed to contain explosives.
Footage of the raid showed him lying injured on the ground by tram tracks, as a bomb disposal robot approached.
Bernard Clerfayt, the mayor of Schaerbeek, said a person linked to the Brussels attacks was shot in the leg and had been arrested but there was no immediate confirmation from police.
Other reports said the suspect was linked to a new terror plot uncovered in France on Friday.
Mr Clerfayt said all blasts were controlled explosions carried out as a precaution by specialist bomb squads, who were seen operating a robot in the area.
The area was closed of and a nearby tram was evacuated as armed police and military vehicles were seen in the area.
Video from Dailymotion.