Brussels, Ramadan 11, 1436, Jun 28, 2015, SPA -- A bus carrying British schoolchildren went off the highway and overturned near the Belgian coast on Sunday, killing one adult chaperone and injuring the driver and some of the children, officials said. Belgian highway authorities said the vehicle apparently went out of control, struck a bridge pillar on the E40 highway, then shot off the road. The bus was carrying around 40 passengers, including 34 British children from 11 to 13 years old, AP quoted authorities as saying. The Belgian federal prosecutor's office said all of the children survived the accident, but an adult passenger had been killed. The bus driver was also seriously injured. Three adults and some of the children were sent to a local hospital for treatment. Others were transported to a center in the coastal city of Middelkerke. British authorities said they were aware of the crash and working with Belgian authorities to help the U.K. citizens. --SPA 17:33 LOCAL TIME 14:33 GMT www.spa.gov.sa/w