Nine people were killed and 14 soldiers kidnapped on Tuesday after a clash between gunmen and Yemeni troops in the southern city of Dalea, a separatist stronghold, local residents and the defense ministry said.

The incident occurred when gunmen attacked a truck carrying food supplies, the defense ministry said on its website. In the ensuing clash, four soldiers and one officer were killed and 14 others were abducted by what the ministry called “saboteurs”.

Local residents said four civilians, including a child, were also killed in the incident. The identity of the gunmen was not immediately clear.