Jean-François Lisee, former adviser to Lucien Bouchard and Jacques Parizeau, is running for the Parti Quebecois in Rosemont, Quebec. (JEAN-FRANCOIS DESGAGNES/QMI Agency)

MONTREAL -- The office of a Quebec minister was vandalized for the second time this week.

The windows of Jean-Francois Lisee's office had just been replaced after Monday's attack when police said an object was used to smash about five windows early Saturday morning.

Lisee, minister responsible for the Montreal area, is one of the government's high-profile MNAs. He is an award-winning author, a former Washington correspondent for a major Montreal newspaper, and was also an advisor to past Parti Quebecois leaders Jacques Parizeau and Lucien Bouchard.

Police spokesman Dany Richer told QMI Agency Saturday afternoon that police investigators couldn't yet say if the two attacks were related.

The riding offices of three MNAs, including Lisee's, were attacked on Monday.

The sentence "mired in austerity" ­ which in French is a play on Lisee's name - was scrawled on a wall of his office on Monday.

Lisee's spokeswoman did not return calls Saturday afternoon.