Gunmen from the Somali militant group al-Shabab say they have attacked a bus in northern Kenya, killing 28 people.
The bus was travelling to the capital, Nairobi, when it was stopped in Mandera county, not far from the Somali border.
Gunmen separated out non-Muslims by asking passengers to read from the Koran, officials and witnesses said. Those who failed were then shot in the head.
Al-Shabab has carried out a series of attacks in Kenya since 2011.
A statement on a website linked to the Islamist group carried a statement saying the attack was carried out in retaliation for security raids on mosques in the coastal city of Mombasa earlier this week.
Kenya’s interior ministry said on its Twitter feed that a camp belonging to the attackers had been destroyed by Kenyan military helicopters and jets, with “many killed”.
