Delta Air Lines and US Airways each announced Tuesday they canceled flights to Israel because of safety and security concerns.
Delta, which typically flies between New York's JFK airport and Ben Gurion International Airport in Tel Aviv, suspended service indefinitely.
Delta Flight 468, a Boeing 747 with 273 passengers and 17 crew members, diverted to Paris on Tuesday after reports of a rocket near Tel Aviv, the airline said.
US Airways also canceled a flight to Israel Tuesday. Flight 796, which began in Los Angeles, was canceled in Philadelphia before leaving for Tel Aviv.
Delta said the airline is working with the Federal Aviation Administration and other government agencies to monitor the situation.