A key U.S. Senate panel approved a spending bill that would double President Obama’s request for funding for Israel’s Iron Dome missile defense system.

WASHINGTON — A key U.S. Senate panel approved a spending bill that would double President Obama’s request for funding for Israel’s Iron Dome missile defense system.

The defense subcommittee of the Senate Appropriations Committee on Tuesday approved the $620 million missile defense package for Israel, which includes $350 million for Iron Dome, a short-range missile interceptor that is being credited with keeping Israelis safe during the current Israel-Gaza conflict.

The funding was already in the pipeline and had been approved last month by the U.S. House of Representatives as part of the Department of Defense Appropriations Act, the same overall $549 billion spending bill approved by the Senate panel on Tuesday.

Sen. Dick Durbin (D-Ill.), the chairman of the subcommittee, indicated that Iron Dome’s success during the recent hostilities helped spur support for the package, telling The Associated Press that the anti-missile system “works.”

The American Israel Public Affairs Committee commended the panel “for standing with Israel by significantly increasing funding for these critical defensive programs, including Iron Dome, at a time when the citizens of our ally are under an unprovoked attack by Islamist terrorists in Gaza,” Marshall Wittmann, the AIPAC spokesman, said in an email.

Israeli officials said the system has had a success rate of 86 percent.

The full Senate Appropriations Committee is set to consider the defense spending bill by the end of this week.

Missile cooperation funding is above the $3.1 billion Israel is set to receive in defense assistance this year. Israel contributes its own funds to the missile cooperation programs, and the United States maintains a proprietary claim to the technologies.

Obama, who initiated funding for Iron Dome in 2009, had requested $175 million for the program for the 2015 budget year. Congress traditionally increases presidential requests for Israel-related spending.