Five members of Teikyo University's rugby team were arrested Tuesday on suspicion of raping a woman in a karaoke booth in Tokyo's Chuo Ward last November, police said.About 10 team members and others were present when the alleged rape took place, and investigators from the Metropolitan Police Department suspect more people may have been involved, they said.According to the MPD, the five arrested rugby players raped the 19-year-old woman from Tokyo's Meguro Ward during a party in the karaoke booth on the evening of Nov. 13. Arrested were Hideki Komahashi, 21, Shinji Suzuki, 22, Junpei Okubo, 20, Takuaki Shibasaki, 20, and Shinpei Okada, 21. They were not starters on the team.Police said they suspect the rape was premeditated because one of the athletes was working part-time at the premises and the suspects took the victim to a separate booth when they allegedly assaulted her. The woman was a girlfriend of another team member at the time. The woman reported the rape to police soon after the attack, the MPD said.The rugby team at Teikyo University in Tokyo's Itabashi Ward was established in 1967, and it has about 90 members. This season, the club was ranked third in the Kanto Regional College League and was one of the top eight college teams in the single-elimination national tournament.