NAIROBI, Kenya (AP) -- A Kenyan police official says 10 people have been killed and 40 wounded in simultaneous attacks on two churches in northeastern Kenya near the Somali border.

Police commander Philip Ndolo said gunmen threw grenades during the Sunday attack and shot at the congregation as church members rushed to flee.

Somali militants have carried out several cross-border attacks in Kenya in recent months, but Sunday's ranks as the deadliest of those attacks.