Israeli Prime Minister Benjamin Netanyahu urged world powers on Sunday, Sept 2 to set a "clear red line" for Tehran's atomic activities and said they had failed to convince it of their resolve to prevent Iran from obtaining nuclear arms, Reuters reported.

Netanyahu's remarks suggested a growing Israeli impatience with its main ally, the United States, and other countries that have been pressing him to give diplomacy and sanctions more time to work and hold off on any go-it-alone Israeli strike on Iran.

"I believe the truth must be stated: The international community is not placing a clear red line for Iran and Iran does not see international resolve to stop its nuclear program," Netanyahu told his cabinet.

"Unless Iran sees this clear red line and this clear resolve it will not stop moving forward with its nuclear program, and Iran must not have nuclear weapons," he said in broadcast remarks.

Although Netanyahu did not single out the United States or U.S. President Barack Obama in his criticism, Israeli officials have said they hope for stronger language from the president about possible U.S. military action.