WASHINGTON – Lawyers for the family of an American teenager killed in a 2006 suicide bombing in Tel Aviv urged a U.S. court on Tuesday, December 17, to reject an attempt by Israel to muzzle a witness in an anti-terrorism case, court documents showed.

The lawsuit revolves around allegations that Bank of China knowingly allowed Palestinian militants to use its accounts to finance their operations, including the suicide attack that killed 16-year-old Daniel Wultz, and 10 others.

Bank of China denies the allegations.

Wultz’s parents, who live in Florida, hoped that evidence from a former Israeli intelligence officer, Uzi Shaya, who allegedly told Chinese counterparts in 2005 about the suspicious bank transactions, would prove decisive.

After initially helping Wultz’s parents prepare the U.S. lawsuit against China’s fourth largest lender, the Israeli government hit the brakes last month, filing a petition seeking to prevent Shaya from giving testimony.

The documents filed on Tuesday by the Wultz family lawyers and seen by Reuters, call on a U.S. district court in Washington to reject the Israeli petition, accusing Prime Minister Benjamin Netanyahu of buckling to pressure from China in the case.

In a November 15 motion, Israel argued that if Shaya testified in the case being brought under U.S. anti-terrorism law, he might reveal state secrets that could harm Israeli security.

The Wultzes dismissed this argument, saying Israel’s government and spy agency Mossad had actively encouraged them to launch the case and handed over copious evidence.

“The complaint was filed only after the GOI (Government of Israel) repeatedly assured my attorneys that it would provide cooperation and support for our allegations,” Daniel’s father, Yekutiel Wultz, said in a written declaration.

The 2006 bombing in Tel Aviv came during a Palestinian uprising against Israeli occupation of lands seized in a 1967 war. The Wultzes were in Israel on holiday at the time.

Israel has until January 6 to file a response to the motion.