01/14/2012 11:33 EST | Updated 03/15/2012 05:12 EDT

Police investigating after 2 men die in Montreal homeless shelter

MONTREAL - Montreal police are investigating after two men were found dead in a homeless shelter this morning.

The men, aged 56 and 75, had spent the night in the shelter.

Police say the 75-year-old had a history of health problems and may have died from a heart attack.

The other man also appears to have died from natural causes.

A winter storm hit Montreal on Friday and it was very cold and windy.

A third homeless man died earlier this month when he was shot during an altercation with police.