Afghan police say a suicide bomber has detonated an explosive device near a bank in northern Afghanistan, killing at least five people and wounding seven others.

At least five people were killed when a suicide bomber with explosives strapped to his body detonated outside a bank in northeastern Afghanistan on Tuesday, police said.

A suicide bomber killed five people including Taliban security forces on Tuesday in an explosion outside a bank in northern Afghanistan, police said. Seven people were also wounded in the attack which targeted a queue of people waiting to collect their salaries from a bank in the city of Kunduz, the capital of Kunduz province.