An American and a New Zealander working for Fox News television were still missing in the Gaza Strip on Tuesday, more than a week after they were seized by gunmen near Palestinian security headquarters.

Steve Centanni, a 60-year-old reporter, and Olaf Wiig, a 36-year-old New Zealand cameraman, have been missing longer than any of some two dozen foreigners previously abducted in Gaza, most of them in the past year. No group has claimed responsibility for the kidnapping and no demand has been made for their release.