Iran's foreign ministry said on Saturday it had not yet decided whether to participate in the next round of talks with the U.S. on the nuclear deal, China Media Group reported.

The remarks come after Iranian state media reports saying Tehran has decided to withdraw from the sixth round of nuclear talks originally scheduled to be held in Oman on June 15.

Israel's attack on Iran and U.S. support for Israel have rendered the dialogue meaningless, the foreign ministry added.