U.S. State Department cites security concerns as reason visas were withdrawn . The United States has been under increasing pressure to crack down on the Taliban and other militant groups in Afghanistan since a series of attacks by militants killed 130 people last month. Israel reportedly acts to prevent the students from leaving Gaza . In an unusual move , the American Consulate in Jerusalem processed the remaining three students ' visa applications with mobile fingerprinting equipment at the Israel- Gaza border and granted the visas three weeks later at the end of July . Advocacy group says Palestinians need more access to higher education .
U.S. State Department cites security concerns as reason visas were withdrawn . The United States has been under increasing pressure to crack down on the Taliban and other militant groups in Afghanistan since a series of attacks by militants killed 130 people last month. Israel reportedly acts to prevent the students from leaving Gaza . Advocacy group says Palestinians need more access to higher education .