MANILA, Philippines?The 22-year-old woman who has accused a United States serviceman of raping her last month recounted her ordeal in a press conference Thursday.

But ?Vanessa? (not her real name), described as a student at a private university, said she was not filing charges against the alleged attacker she called ?John Jones,? said to be a Marine participating in the Balikatan (shoulder-to-shoulder) joint military exercises between the Philippines and the US.

Vanessa, her head covered by a lilac-colored shawl and wearing a white long-sleeved blouse and dark glasses, had her back turned away from the media during the press briefing.

She left immediately after reading her prepared statement in Filipino.

Evalyn Ursua, the lawyer of ?Nicole? in the Subic rape case, said she had spoken with Vanessa and the latter insisted she would not file a case against her alleged rapist because she was discouraged by the way the Nicole case was treated by the government and the justice system.

Gabriela secretary general Emmi de Jesus said the young woman wanted to reveal the rape incident as part of her ?healing process? and to prevent a similar incident from happening again.

In her account, Vanessa said Jones raped her in a Makati hotel last April 18.

She said she had met Jones, who introduced himself as a US Marine, last April 10 in a bar at The Fort in Taguig City. He asked for her number and they met again five days later, also at the Fort.

The victim said she and Jones were with separate groups of friends and the two groups got together and talked until the wee hours.

On April 18, Vanessa said she was at a bar when she received a text message from Jones. He joined her there with three other women.

Jones invited her to a Makati hotel and told her that the friends they were with a few nights before would be joining them. They chatted for a while.

When Vanessa made a move to leave, saying his girlfriend might not like it if she sees her there, Jones got mad and slapped her on the face.

She said he threw her on the bed and raped her. He held her neck while he repeatedly slapped her, she said.

Vanessa said she was only able to leave after she threatened to ?break the television with the remote control.?

She was brought by the hotel security and staff to a police station where she was able to file a report.

Ursua said Vanessa was examined by a medico-legal within 48 hours of the rape incident.

She said Vanessa had executed ?a long sworn statement? and they would be ready with evidence if the victim decides to pursue the case.

?What is clear is a rape incident happened. She was treated violently. She had bruises on her neck when I saw her, she underwent a medico-legal examination within 48 hours. There is physical evidence [of rape] seen by the doctor who examined her,? Ursua said.

The Presidential Commission on the Visiting Forces Agreement (VFACOM) Thursday called for an impartial investigation into the rape claim.

Undersecretary Edilberto Adan, the VFACOM head, said the VFACOM would coordinate with police authorities.

?It is the right of any crime victim to file a complaint with police authorities, and it is the duty of the police to conduct an impartial investigation. Rape is a serious crime,? he said in a statement.

The United States Embassy said it viewed with serious concern the allegation of rape against another visiting US soldier.

Deputy spokesperson Karen Schinerrer said in a text message that the embassy had no additional information on the matter.

?However, the US takes seriously specific allegations regarding activities by visiting US personnel,? she said.

In 2005, ?Nicole? accused a US Marine, Lance Corporal Daniel Smith, of raping her at the Subic Freeport. Smith was convicted in 2006 and sentenced to up to 40 years by a Makati court, but won an appeal with the Court of Appeals last month.

Last March, Nicole recanted her rape allegations. She accepted money from Smith and went to live in the US with her American boyfriend. With a report from Cynthia D. Balana