Iranian Foreign Ministry spokesperson says the recent talks in Switzerland involving US, Iranian, Qatari and Pakistani officials lasted about an hour and a half before breaking for a recess, Al Jazeera reports.

After the break, the Iranian delegation chose not to resume the quadrilateral session and instead continued exchanging messages with the US through mediators, Baqaei has said.

Baqaei didn’t specify the reason for the decision. However, reports suggested the Iranian delegation protested President Trump’s threatening social post during the talks.