CP Prime Minister Justin Trudeau says his government won't comment further on Raj Grewal, a Liberal MP who resigned to seek treatment for what the PM's office said was a gambling problem.

OTTAWA — As the political storm around Raj Grewal intensifies, Justin Trudeau says there are many lingering questions about the Liberal MP.

The prime minister says he wishes Grewal the best in the healing he needs to go through, but the government won't comment further on him.

The Prime Minister's Office said last week that Grewal's sudden decision to step down as MP for the Ontario riding of Brampton East was prompted by a gambling problem.

However, as of early today Elections Canada hadn't been notified of any resignation.