A tram that derailed in downtown Oslo then ploughed into a phone and computer shop left four people injured, though none seriously, Norwegian police have said.

There were about 20 people on the commuter train when it came off the tracks on Tuesday at an intersection on Storgata, one of the Norwegian capital’s main thoroughfares close to Oslo’s main train station.

Witness Mohnsin Munir told Norwegian media that he saw the tram travelling at high speed. It was supposed to make a left turn but derailed and continued straight ahead and into the shop.