Australians in the Gaza Strip are being urged to leave immediately as violence in the area continues to escalate.

The Australian Embassy in Tel Aviv is arranging a one-off assisted departure of Australians from Gaza, and the federal government has asked those wanting to leave to urgently contact the Department of Foreign Affairs and Trade.

The government has upgraded its travel warnings for the area amid reports that more than 130 people have been killed since the violence began five days ago.

Foreign Affairs Minister Julie Bishop said she was “deeply concerned by the deteriorating situation” in Israel and the Palestinian territories.

“The retaliatory acts from both sides that have led to civilian deaths and injuries are deeply regrettable, and I call on all parties to exercise restraint and do everything necessary to avoid a further escalation of violence,” she said.