Kerry to stay at Iran talks till at least early Thursday

US Secretary of State John Kerry looks out of the window of his room at the Beau-Rivage Palace hotel during a break in Iran nuclear talks in Lausanne, Switzerland, on April 1, 2015. Kerry will stay in negotiations with Iran and his counterparts until
US Secretary of State John Kerry looks out of the window of his room at the Beau-Rivage Palace hotel during a break in Iran nuclear talks in Lausanne, Switzerland, on April 1, 2015. Kerry will stay in negotiations with Iran and his counterparts until at least Thursday morning, as they seek to reach a deal on the Iranian nuclear programme. -- PHOTO: AFP

LAUSANNE (AFP) - US Secretary of State John Kerry will stay in negotiations with Iran and his counterparts until at least Thursday morning, as they seek to reach a deal on the Iranian nuclear programme.

"We continue to make progress, but have not reached a political understanding. Therefore, Secretary Kerry will remain in Lausanne until at least Thursday morning to continue the negotiations," State Department acting spokeswoman Marie Harf said.