PRO-Palestine protesters breached security at Australia’s Parliament House to unfurl banners from the roof today as a senator quit the government over its approach to the Gaza war.

Tensions over Israel’s war against the Palestinians dominated Parliament’s final sitting day before a five-week break.

Four protesters were arrested after draping the words “war crimes” and “genocide” as well as the slogan “from the river to the sea, Palestine will be free” for more than an hour over the building’s facade, known as the Great Verandah.