A Kenyan official says one person has been killed when an ambulance hit a land mine in the northeastern county of Garissa.

Yusuf Korow, a spokesman for the county, said in a statement late Monday that two others in the ambulance had serious injuries in the incident Monday evening.

The statement said the ambulance was on its way to pick up a patient when it hit the mine, and it called the incident a "cowardly, hateful and un-Islamic act."

Garissa County recently has been the target of attacks by suspected members of the Islamic extremist group al-Shabab, which opposes Kenya's military involvement in neighboring Somalia.

In April 2015, al-Shabab gunmen massacred 148 people on a college campus in Garissa.