I'll share what his brother John wrote:
Fr Laurence Gresser is a FSSP priest from Sydney who suffered extensive burning on Saturday:
The first 24 hours have been difficult for Fr Laurence, but things are looking positive.
On Saturday afternoon, while on a visit to the poor, Fr Laurence felt cold and tried to light a faulty heater, which exploded. His cassock caught on fire and he sustained burns to 35% of his body. An ambulance was called straight away and he received immediate care in hospital. His situation on Saturday night was considered critical but has since stabilised.
Fr Laurence is currently in Intensive Care, and is sedated. The burns are mainly to his face, chest, left arm/hand and right shoulder. The doctors have so far classified them as “superficial” although the full extent of his injuries will not be known for 7 – 10 days. It is not yet known if there is any damage to his eyesight. Doctors are optimistic he will make a full recovery (although they will not estimate how long that may take). Please pray that there will not be any permanent damage or scarring.
Fr Laurence has been Anointed twice and has also been blessed with every Sacramental Fr Wong has in his extensive collection!