The House of Commons deputy speaker Nigel Evans has been re-arrested on three new offences of indecent assault.
The Tory MP for Ribble Valley was arrested by police after he answered bail following his arrest in May for separate rape and sexual assault allegations.
The latest offences are alleged to have taken place in Blackpool and London between 2003 and 2011 on three men in their 20s.
Evans, 55, has previously denied all the allegations against him.
A spokesperson for Lancashire Police said: "A 55-year-old man from Pendleton in Lancashire has today answered his bail following his arrest in May on suspicion of rape and sexual assault.
"He has subsequently been further arrested on suspicion of three further offences of indecent assault. He will be interviewed about these allegations at a police station in Lancashire during the course of the day.
"These offences are alleged to have been committed in Blackpool in Lancashire and London between 2003 and 2011. The rape and indecent assault offences are alleged to have been committed in Pendleton between July 2009 and March 2013.
Following his arrest in May, Evans described the allegations against him as "completely false". He also said he was "overwhelmed" by the support he has received from friends, colleagues and members of the public since his arrest.
Swansea-born Evans has served as MP for Ribble Valley in Lancashire for more than two decades since first being elected in 1992.
He was appointed one of three Deputy Speakers of the House of Commons in 2010.