A man has died and six children have been injured in a crash involving a car and a school bus.
Officers were called to the junction of Cypress Drive and Willowdene Way, St Mellons, Cardiff, at about 08:05 GMT on Monday morning.
A silver Ford Fiesta and a single-decker school bus carrying around 40 children were involved.
South Wales Police said the driver, a man aged 40, was declared dead at the scene.
Cardiff council said the bus, operated by Edwards Coaches, was carrying pupils to St Teilo's Church in Wales secondary school.
Six pupils were taken to Cardiff's University Hospital of Wales with minor injuries after the crash.
A Welsh Ambulance Service spokesperson said it sent four ambulances, one doctor, two rapid response vehicles and one hazardous area response team vehicle.
A message on the school's website reads: "There has been a serious collision between the R111 school bus and a car on Cypress Drive, St Mellons.
"No children are seriously injured and all those who have attended school are well.
"The South Wales Police are supporting the school at this time and wish to reassure parents that their children are safe and being supervised by staff."