Police say a bus at Frankfurt's international airport sped into a group of passers-by, killing one and injuring five others, two severely, according to AP. Police spokesman Manfred Fuellhardt said the bus, carrying airport employees, hit people who were waiting at a bus stop at one of the hub's entrance gates Thursday morning. He said police do not yet know what caused the accident. The bus driver is suffering from shock and was also hospitalized. A spokeswoman for Frankfurt Airport, continental Europe's second-biggest hub, said it is likely the injured were airport employees trying to get to work.