The death toll from Monday’s asthma thunderstorm event in Melbourne has risen to six, with five others in intensive care.

The fifth victim is understood to be a woman who passed away on Friday night at Northern Hospital in Epping.

Eastern Health confirmed this morning that a sixth person has died following the outbreak on Monday, but no other details have been released.

“There have now been six deaths that may have occurred as a result of conditions relating to the thunderstorm asthma events on Monday,” a health department spokesman said in a statement.

Included in the six are Noble Park father-of-two Clarence Leo, 35-year-old Apollo Papadopoulos, law student Hope Carnevali, 20, and Year 12 student Omar Moujalled.

The Inspector General for Emergency Management will investigate the cause of those deaths and his findings will form part of an overarching review that will examine how Ambulance Victoria and emergency services responded to and how the community was notified of the unfolding crisis.

Hospitals across Melbourne are treating 24 people for a variety of respiratory and related conditions.

Across Monday and Tuesday, they treated more than 8,500 patients.