Kabul blasts cause casualties at boys' school, say police

Two explosions have caused a number of casualties at a boys' school in the Afghan capital Kabul, police say.

The blasts were reported at the Abdul Rahim Shahid high school in Dasht-e-Barchi, a Shia Hazara neighbourhood in the west of the city.

They happened as students were leaving morning classes, one witness told the AFP news agency.

The number of dead or wounded is still unclear. There was no immediate claim of responsibility.

Hazaras are an ethnic and religious minority frequently targeted by Sunni militant groups.

Sources from Muhammad Ali Jinnah Hospital in Kabul told the BBC they had so far received four dead bodies and 19 injured people from the attack.