Activists detained by Israel for taking part in a flotilla seeking to deliver aid to Gaza allege that Swedish campaigner Greta Thunberg was mistreated during her detention.
Dozens were killed in Israeli strikes on Gaza on Saturday, local health officials said, despite a demand from US President Donald Trump for Israel to stop the bombing.
An anti-trafficking expert says the idea that only 31 people are trafficked each year in New Zealand is very unlikely, given that an estimate puts modern slavery here at 8000 victims.
About 1000 people have marched from Wellington's Pukeahu War Memorial Park in the pouring rain, calling for the government to sanction Israel and recognise Palestinian statehood.
Hamas said it would agree to some aspects of Donald Trump's plan to end the Gaza war, including releasing hostages, but that it would seek negotiations over many of its other terms.