No skid marks have been detected on the road in Tokyo's Ikebukuro district where a car crash killed two people and injured eight others Friday, causing investigators to suspect that the driver mistakenly stepped on the gas pedal, police said Saturday.

Mana Matsunaga, 31, and her 3-year-old daughter, Riko, died when a car driven by an 87-year-old man rammed into their bicycle. The car also struck another cyclist, injured the driver of a garbage truck and mowed down four pedestrians before coming to a halt some 150 meters after first striking a guard rail.

The Metropolitan Police Department has identified the driver as Kozo Iizuka. Both Iizuka and his wife, who was in the car with him, suffered broken bones and were admitted to hospital.