A Kenyan official says at least 14 people have been killed in an attack by al-Qaida-linked al-Shabab militants in the country's north.

Mandera County Commissioner Alex Nkoyo said the attack took place Tuesday in Soko Mbuzi village in Mandera County near the Kenyan border with Somalia and 11 people were wounded.

The Somali-based militants have killed at least 85 people, all of them non-Muslims, in the last eight months in Mandera County.

Al-Shabab has vowed to carry out attacks in Kenya as retribution for the country sending troops to Somalia to fight the militants. Kenya sent its troops to Somalia in Oct 2011 following a series of cross-border attacks including kidnappings which the government blamed on al-Shabab.