Two truck drivers were injured during a crash in Ravenel Friday morning.

At around 5 a.m. the driver of a tractor-trailer heading south on Highway 17 near Old Jacksonboro Road swerved and crashed into a dump truck that was parked in the median preparing for a trash pickup, according to Charleston County Sheriff's Maj. Eric Watson.

The driver of the dump truck had just walked across the street to unlock a gate, Watson said. When the dump truck driver returned to the driver's seat, the tractor-trailer collided with his truck head-on, according to Watson.

Both drivers were transported to Medical University hospital and were in serious condition, Watson said.

The crash remains under investigation.

The collision led to lane closures for several hours Friday.

Reach Natalie Caula Hauff at 937-5594 or Twitter.com/ncaula.