Palestinian officials say security forces are searching for two Fox News journalists abducted in Gaza Monday.
They say authorities are trying to determine who took the two men - an American and a New Zealand national.
New Zealand Prime Minister Helen Clark has sent diplomats to the region to work with Palestinian authorities to secure the journalists' release.
Press rights group Reporters Without Borders has called for the men's release. It says they were doing their jobs and can in no way be held responsible for U.S. policy in the region.
Several foreign nationals have been kidnapped and released in Gaza this year.