March 20 (Reuters) - The following are the top stories from selected Canadian newspapers. Reuters has not verified these stories and does not vouch for their accuracy.
** The Liberal-dominated justice committee shut down hearings into the SNC-Lavalin affair on Tuesday, preventing former attorney-general Jody Wilson-Raybould from returning to testify about the fallout from her refusal to shelve the prosecution of the Montreal construction giant tgam.ca/2Hvrf3B
** Caisse de dépôt et placement du Québec is earmarking C$250-million ($187.46 million)for new investments in growing artificial-intelligence companies to help promote that emerging sector of Quebec tech. tgam.ca/2U2oWec
** Unifor Canada has suspended its negative ad blitz against General Motors Co amidst new hope it can save some jobs at the century-old manufacturing plant in Oshawa, Ontario. bit.ly/2W9Rno7
** After more than a year of testing, Tim Hortons will launch its new loyalty program across Canada on Wednesday, giving the company a new tool to fend off challenges to its coffee supremacy. bit.ly/2HwUtiS ($1 = 1.3336 Canadian dollars) (Compiled by Bengaluru newsroom)