Man critical after Vic shed explosion

Two men have had to be air-lifted to hospital after an explosion in a shed in rural Victoria overnight.

The men had been lighting a fire in the shed near Shelford, south west of Melbourne, when the explosion occurred.

A man in his 30s suffered burns to his face and arms and was flown by air ambulance to The Alfred Hospital in a critical condition while a man in his 40s, who also suffered burns to his face and arms, was flown to hospital in a stable condition.