The Global Peace & Justice group says its website and several other New Zealand websites sympathetic to the Palestinian cause, have been put off-line and they blame Israel.
Spokesperson John Minto says articles on Gaza have been taken down, Facebook pages of local supporters have been removed and an email newsletter has been affected.
He blames the attacks on what he calls a dedicated unit within the Israeli military, which he says attempts to close websites organising opposition to Israeli policies.
The Israeli Embassy in Canberra says the allegations are nonsense.
