U.S. Secretary of State John Kerry met with Iranian Foreign Minister Mohammad Javad Zarif and others in Vienna Sunday to discuss a possible extension on their talks on Tehran's nuclear program, the Associated Press reported Sunday. Formal talks are continuing, and Kerry said on Twitter they are making progress after a fifth session although obstacles remain.

"We're continuing to chip away in Vienna,” he tweeted. “P5+1 united.” (The p5+1 are the five permanent members of the U.N. Security Council plus Germany.) Kerry finished his tweet with the hashtag “#IranTalksVienna.” The message garnered dozens of favorites and retweets after it was posted for less than a half hour. 

The "IranTalksVienna" hashtag has become popular among Twitter users who took to the social media platform to discuss the future of Iran’s nuclear program and was even a top-trending topic. Some netizens made jokes about missing the Monday deadline for an agreement limiting Iran's nuclear capabilities: 

Others just hoped for peace:

It will be “impossible” to reach a deal, an anonymous source told the Iranian Students' News Agency, according to Reuters. "The issue of extension of the talks is an option on the table and we will start discussing it if no deal is reached by Sunday night," the insider added. 

It was rumored for weeks negotiations would not be reached by the deadline Monday, Reuters reported. A deadline date for the next possible extension was not released.

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