07/29/2015 10:05 EDT | Updated 07/29/2016 05:59 EDT

Gérald Tremblay's home targeted in UPAC raids

Quebec's anti-corruption investigators are searching the home of former Montreal mayor Gérald Tremblay.

UPAC investigators were seen taking boxes from his home this morning. 

Eight raids have been conducted in recent weeks in relation to a $355-million cancelled water-meter contract.

​Last week, UPAC raided the home of the mayor of Lachine, Claude Dauphin, as well as three former municipal politicians: Francine Sénécal, Sammy Forcillo and Cosmo Maciocia.

Lachine's municipal office was also targeted in those searches.

The investigation relates to a multi-million dollar water-meter contract awarded by the city during Tremblay's tenure to the private consortium GÉNIeau. Tremblay cancelled the contract in 2009 after a review found irregularities with the tendering process.

Tremblay served as mayor of Montreal from 2002 until his resignation in 2012.