Following an earlier suspension of play due to extreme heat, the tennis was further interrupted later in the day by heavy rainfall.
Reuters photographer Brandon Malone captured a lightning bolt appearing in the Melbourne skyline while Michal Przysiezny played Stephane Robert played on an outdoor court.
Play has currently resumed on the covered showcourts for the evening session. Andy Murray's second round match has been delayed.
Temperatures in Melbourne are so hot that an egg has been pictured frying on court at the Australian Open tennis tournament.
Australian breakfast TV show Sunrise tweeted this photograph:
Forecasters suggested temperatures could hit 44C on Thursday and Friday.
Latest: Australian Open tennis suspended in extreme heat
The suspension of the Australian Tennis Open in Melbourne following two days of soaring will cause severe disruption to in ad schedule of 32 singles matches as well as doubles.
– Tournament statement
The Australian Open extreme heat policy has been implemented," said a statement.
The roof on Rod Laver Arena and Hisense Arena will be closed at the end of the set. Play will be suspended at the end of the set on all outside courts until further notice.
Temperatures could go as high as 44C according to forecast and remain high on Friday.
The organisers of the Australian Tennis Open have suspended play amid extreme heat as temperatures soared to 42C, according to AFP.
The news agency reported that players would have to complete their current sets at 6am GMT on the outside courts and the roof would be closed on centre and second courts
Read: Australian Open suspension will cause severe disruption