Four killed in Seattle school bus collision

At least four people were killed and several critically injured Thursday when a school bus transporting foreign exchange students collided with a tour vehicle in the US West Coast city of Seattle, officials said. Melissa Mixon, spokeswoman for North Seattle College, told AFP that 45 foreign exchange students and staff with the school's international program were on board the bus. "The accident occurred when a charter bus traveling with the students collided with a Ride the Duck tour vehicle," Mi