French Foreign Minister Catherine Colonna said there are only a few weeks left before the window of opportunity for the Iranian nuclear deal closes, Reuters reported.

Speaking to lawmakers, Catherine Colonna said the situation is no longer acceptable and accused Iran of using delaying tactics and abandoning previously agreed-upon positions during talks in Doha earlier this month while continuing its uranium enrichment program.

"There is still a window of opportunity...for Iran to finally decide to accept an accord which it worked to build, but time is passing," Colonna said, warning that if Iran kept on its current trajectory it would be a threshold nuclear arms state.

"Time is passing. Tehran must realize this," she said, adding that the U.S. mid-term elections would make it even harder to seal a deal.

"The window of opportunity will close in a few weeks. There will not be a better accord to the one which is on the table."

Last week, the U.S. special negotiator for a renewed deal said Iran had made demands unrelated to the nuclear program discussion during the latest talks and had made alarming progress on uranium enrichment.