GENEVA (AFP/REUTERS) - United States Secretary of State John Kerry was hospitalised in Geneva on Sunday after a cycling accident across the border in France, the State Department said.

He was flown by helicopter to the Geneva University Hospital "where he is currently being evaluated" following the accident in Scionzier, France, near Chamonix in the French Alps, a statement said, adding that Kerry, 71, had "likely suffered a leg injury".

"Secretary Kerry is stable and likely suffered a leg injury. He did not lose consciousness," spokesman John Kirby said.

The accident occurred at around 9.40am local time, the statement said. "Paramedics and a physician were on the scene with the secretary's motorcade at the time of the accident," it added.

Mr Kerry held talks Saturday in Geneva with his Iranian counterpart Mohammad Javad Zarif in efforts to secure a nuclear deal ahead of a June 30 deadline.

The talks did not go into a second day as planned after Teheran rejected a key Western demand for site inspections.