JERUSALEM — Nineteen foreign activists of the pro-Palestinian Free Gaza Movement were being held in Israel awaiting deportation on Thursday, two days after the Israeli Navy seized control of their boat off Gaza.

A former United States Representative, Cynthia McKinney, and an Irish peace activist and Nobel laureate, Mairead Corrigan Maguire, were among those being held. Two additional Israeli activists were released without being charged on Wednesday, according to the group.

The Free Gaza Movement and other campaigners have sailed several boats to Gaza in the last year, saying they wanted to bring humanitarian aid and challenging the Israeli blockade. Israel has let some boats reach the coastal strip and forced others to turn back at sea

This time, the Israeli navy commandeered the boat and brought the crew and passengers ashore in Ashdod. The military said in a statement that the navy had previously contacted the boat at sea and warned that it would not be permitted to enter Gaza coastal waters “because of security risks in the area and the existing naval blockade.”

Richard Falk, the United Nations special rapporteur for human rights in the Palestinian territories, said in a statement from Geneva on Thursday that the seizure of the boat was unlawful and that the Israeli blockade of Gaza constituted a “continuing crime against humanity.”

The boat left Cyprus on Monday and was seized on Tuesday. The activists said they had a cargo of medical and reconstruction supplies and children’s toys.

The Israeli military said the aid would be transferred to Gaza subject to security authorization.

Ramzi Kysia, an activist with the Free Gaza Movement, said the 19 people being detained were likely to be deported by Friday, once deportation procedures were complete. But he said some might refuse deportation unless all of those being detained were released together and all the equipment of journalists with the group was returned.

Speaking by telephone from Cyprus, Mr. Kysia said that five of the detainees were Bahraini citizens and that they were being held apart from the others in a cramped facility.

In a report issued earlier this week, the International Committee of the Red Cross criticized the Israeli-imposed embargo, saying that Gaza’s 1.5 million residents were “trapped in despair.”

The Israeli government has said it is reviewing the embargo policy, but it has not yet made any decisions.

Also Thursday, Palestinian reports said that a girl, 17, had been killed by a shell from an Israeli tank in central Gaza and that several others had been wounded. The Israeli military said an army patrol had come under fire along the border in the evening and fired mortars in response. Military officials, speaking on condition of anonymity under army rules, said initial investigations indicated that Palestinian militants had also fired mortars during the clash and that the Palestinian casualties had probably been caused by Palestinian fire.

www.nytimes.com/2009/07/03/world/middleeast/03gaza.html