TOKYO - Thirty-one people were injured after an overnight bus crashed into a truck on the Tohoku Expressway early Thursday morning in northeast Japan's Shiroishi city, Miyagi Prefecture, local police said.

All 38 people on the vehicles, including 36 on the bus and two on the truck, were taken to hospital, police said.

The bus was heading for northeastern Japan's biggest city of Sendai from the Tokyo Disney Resort when the crash took place at around 4:10 am. It hit the truck from the rear on the expressway.

The driver of the bus, Susumu Tada, a 61-year-old resident of Katori, Chiba Prefecture, said he had no clear memory of the crash as he was sleepy at the time, according to doctors.