REMBAU, July 12 -- Four out of 30 passengers suffered minor injuries after their express bus rear-ended a trailer along KM243.9 of the North-South Expressway (northbound) early this morning.

Negeri Sembilan Fire and Rescue Department said it received a distress call at 2.52am and dispatched a team from the Rembau station, assisted by teams from Kota and Senawang, Harian Metro reported.

"The accident involved an express bus crashing into the back of a trailer," a department spokesman was quoted as saying.

Operations commander Mohd Kassim Arippin said there were 30 people on board the bus - 13 men, 16 women, and a child.

"Four adult women sustained minor injuries. All passengers managed to exit the bus on their own before rescuers arriv...