Tel Aviv District Court Judge Oded Modrik on Thursday ruled to expel New Yorker Anne Robinson-Petter, the 44-year-old graphic and video artist who has been under arrest by the Immigration Police for the past two weeks.

The expulsion request was made Israel's security services, on the grounds that the member of the International Solidarity Movement posed a security threat.

The Tel Aviv court upheld the decision denying her entry into Israel and ordered her to leave the country within 24 hours, said her lawyer, Yael Berda.

Robinson-Petter has been held at Ben-Gurion International Airport in the holding cells reserved for people refused entry to the country.

She arrived two weeks ago for a 14-day visit with the intention of filming a video about a 79-year-old Holocaust survivor traveling the country and the territories, and to take part in demonstrations against the separation fence.

According to Shamai Leibowitz, Robinson-Petter's second lawyer, Petter was questioned for some 10 hours by security agents at the airport and refused to hand over information about other members of the Israeli-Palestinian organization.

She was denied entry to Israel on two grounds, says the report on her being questioned at the airport: "Her guaranteed participation in hostile sabotage activity," and belonging to "a leftist organization...