A 20-year-old university student has been arrested on suspicion of attempted murder after he jumped from a Tokyo train station platform, taking with him a woman who was standing nearby, police said.

Yasunari Kawamitsu allegedly grabbed the arm of the 59-year-old woman as she waited for a train and pulled her off the platform with him at around 9:25 a.m. Sunday at Eifukucho Station on the Keio Inokashira Line in Suginami Ward, the police said.

The two landed in front of a stopped train and the woman sustained a fractured hip, while Kawamitsu bruised his right leg, the police said.

They said the two do not know each other.

"I don't remember (what I did) too well," Kawamitsu was quoted by the police as saying. He allegedly told them he had been drinking from midnight Saturday to 4 a.m. Sunday and took a train from Shibuya Station at around 8 a.m.

According to Keio Corp., the incident took place shortly before the train was due to depart the station, and station employees pulled the two from the tracks.

Kawamitsu, from Okinawa, studies marketing at Takachiho University in Suginami Ward.

Hiroshi Narita, president of the university, issued an apology Monday.

"I truly apologize for the victim," he said. "The impact of the incident, which took place in public, is huge, and I can't regret the incident enough."