Iran negotiator: Nuclear talks likely to be extended through weekend

Nuclear negotiations will likely stretch in to the weekend, Iran's Foreign Minister Javad Zarif said Friday.

"I doubt it will happen today," Zarif told reporters in Vienna about reaching a deal. But when asked if negotiators would all be there on Monday Zarif yelled from a balcony "I hope not."

This would be the latest extension for Iran nuclear talks, which have a Friday self-imposed deadline -- and which followed missing two other previous deadlines. (CNN)