Maverick Niagara Falls Liberal MPP Kim Craitor has resigned, clearing the way for a byelection within six months.

Craitor, a three-term MPP first elected in 2003, frequently sparred with his own government, battling against hospital closures in his riding.

Premier Kathleen Wynne delivered the news to surprised colleagues at a Liberal caucus meeting Tuesday.

“Today, Kim Craitor advised me of his resignation and that he is stepping down as the MPP for Niagara Falls, effective immediately,” the premier said.

“Kim was first elected to the Ontario legislature in 2003, and has a long history of public service in his community,” she said.

“Over the last 10 years, he has served as parliamentary assistant in various portfolios, including Community and Social Services, Energy and Infrastructure, Tourism and Culture, and Community Safety and Correctional Services,” Wynne continued.

“I thank him for his service and wish him luck in his future endeavours.’”

Wynne said a byelection will be held by March.

Craitor, who has confided of health concerns in the past, was not immediately available for comment. He released a statement, stressing he enjoyed his “immensely satisfying job.”

“I was extremely proud and particularly honoured to have been elected three times to represent the people of Niagara Falls, Fort Erie, Niagara-on-the-Lake and in the first term the people in Thorold-South,” he said.

His statement did not give a reason for his resignation other than noting he just celebrated his 67th birthday.

His departure means in the 107-member legislature the minority Liberals have 49 seats including Speaker Dave Levac. The Progress Conservatives have 37 seats and the NDP 20.