Uruknet: Police on Tuesday detained an Israeli activist who had sailed to the Hamas-ruled Gaza Strip to challenge Israel's blockade of the coastal region. They accused Jeff Halper, who also holds United States citizenship, of violating a ban on Israelis entering Gaza. Halper was among 44 "Free Gaza" activists from 17 nations who sailed in two boats from Cyprus to the Gaza Strip on Saturday in defiance of the blockade. He spent three days in the Gaza Strip before entering Israel through the Erez border crossing, where police detained him.