Iran nuclear talks: Deal can be reached, says Rouhani

Iran's President Hassan Rouhani says progress made in nuclear talks means a final deal can be reached.

"There is nothing that cannot be resolved," although some differences still remain, Iranian state media quoted him as saying.

US Secretary of State John Kerry also said that "substantial progress" had been made.

Six world powers are negotiating a deal with Iran aimed at limiting its nuclear activity, with a late March deadline.

Emily Buchanan reports.