MURSITPINAR, Turkey (AP) — A U.S.-led coalition airstrike on a gas distribution facility in a stronghold of the Islamic State group set off a series of secondary explosions and killed at least eight people in eastern Syria, activists said Saturday.

The airstrike targeted a distribution station in the town of Khasham in the oil-rich province of Deir el-Zour late Friday, Deir el-Zour Free Radio, an activist collective, said on its Facebook page. The collective named four of those killed and said another four charred bodies were placed in a nearby mosque. It said the slain men were mostly fuel tanker drivers.