Protestors showing support for Palestine briefly interrupted Cameron Norrie's Australian Open defeat to Alexander Zverev earlier.#
Leaflets were distributed around the Melbourne site and pieces of paper were thrown on to court.
Some said 'while you're watching tennis, bombs are dropping on Gaza'.
Two women were detained but released without charge.
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Zverev advanced to the quarter-finals with the sixth seed beating Norrie 3-2 in sets after a final set tiebreak.
Daniil Medvedev and Hubert Kurkacz also advanced after their respective wins earlier this morning, while Carlos Alcaraz beat Miomir Kecmanovic in straight sets.
In the women's draw, 15th seed Qinwen Zhang is through to the last eight after a straight sets victory over Oceane Dodin.
Linda Noskova progressed after Elina Svitolina was forced to retire through injury after just three games of the first set.
