Iranian parliamentarians are preparing a bill that could push Tehran toward exiting the nuclear Non-Proliferation Treaty the foreign ministry said on Monday, while reiterating Tehran’s official stance against developing nuclear weapons, Reuters reported.

“In light of recent developments, we will take an appropriate decision. Government has to enforce parliament bills but such a proposal is just being prepared and we will coordinate in the later stages with parliament,” the ministry’s spokesperson Esmaeil Baghaei said, when asked at a press conference about Tehran potentially leaving the NPT.

The NPT, which Iran ratified in 1970, guarantees countries the right to pursue civilian nuclear power in return for requiring them to forego atomic weapons and cooperate with the UN nuclear watchdog, the IAEA.

Israel began bombing Iran last week, saying Tehran was on the verge of building a nuclear bomb. Iran has always said its nuclear program is peaceful, although the IAEA declared last week that Tehran was in violation of its NPT obligations, according to Reuters.