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.
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.
More top news
British pubs are still considered cornerstones of the community, but with an estimated 30 closures a week, is this tradition under threat?
The remarkable rescue of baby elephant Roi, who faced starvation after poachers killed its mother, was captured on film.
The judgment means obese workers in the UK could claim they are technically disabled and entitle them to benefits or to seek compensation.