Norwegian police have arrested a man suspected of "Islamist terrorism" after two people were killed and 21 wounded in shootings near a gay bar in the capital Oslo on Saturday, causing the city's Pride march to be cancelled. The suspect, who was already known to the anti-terrorism services, was arrested quickly after the shooting started around 1:00 am (2300 GMT Friday) in central Oslo. Norway's domestic intelligence service PST, which is responsible for counter-terrorism, said it was treating the attack as "an act of Islamist terrorism".