Deadly blaze in office building in Texas kills three

Firefighters are battling a blaze at 6-storey office building in North Houston, Texas. According to Houston's fire chief, 3 people have died and at least 6 have been injured in the inferno.

It was not yet clear what started it.

The flames were coming out of the top floors, and firefighters had to use ladders to rescue people.

Several medical clinics, an engineering company and editorial offices of a magazine are listed as tennants of the building.