The emergency department at St. Michael’s Hospital reopened for critical patients only on Wednesday evening, after closing Tuesday due to flooding caused by a burst pipe.

A spokesperson for the hospital said the department will now accept critically ill patients or those suffering trauma, arriving by land ambulance or airlift only.

The hospital tweeted they will not be able to accept walk-ins "for the forseeable future."

At around 1 a.m. Tuesday, water began to leak through the walls and ceiling of the hospital’s emergency room after a pipe burst on the second floor of the Cardinal Carter wing.

All trauma patients were redirected to other trauma centres and walk-ins at the emergency room were encouraged to go to nearby hospitals for treatment.