The four men, who were not on duty at the time of the alleged assault, were placed in custody on Thursday.

They are accused of raping a 34-year-old Canadian woman after meeting her in a Paris pub on Tuesday.

The policemen were detained following a complaint filed by the woman, described by French daily Le Figaro as “the daughter of a Canadian police officer and possibly an officer herself”.
French media say the woman agreed to follow the policemen to their offices, where she claims she was raped.

According to French law, the four men can be held for 48 hours, after which they will be either released or brought before an investigative judge.

A police source quoted by Le Figaro said it was "too early to know exactly what happened" and that the suspects' detention was "inevitable in such sensitive cases when civil servants are involved".