QUITMAN (AP) — At least two people were killed and four were injured Thursday when a propane line exploded at a pipeline site in southeastern Clarke County, according to the Mississippi Emergency Management Agency.

MEMA said the explosion occurred in a 12-inch pipe about 10:30 a.m. at the Dixie Pipeline site near the Carmichael community.

Jonathan Ivy, communications director for the county, confirmed the explosion but could provide no other details.

The explosion also damaged five homes in the area, but the extent of damage was not known, MEMA said.

‘‘A one-mile radius around the explosion is being evacuated,’’ a MEMA official said.