DHAKA: Representatives of six world powers are intensifying talks with Iran, as a deadline to reach a deal on Tehran’s nuclear program looms.

The US secretary of state and German and French foreign ministers have all reportedly cancelled their travel plans in a final push for an agreement.

Representatives from China, Russia and the UK are also in Switzerland for the negotiations.

They are working towards a self-imposed deadline of 31 March.

The world powers, known as the P5+1 group, the five permanent members of the UN Security Council plus Germany, want to ensure that Iran cannot develop nuclear weapons.

Iran denies it is aiming to build nuclear weapons and is hoping that a deal will lead to an end of international sanctions imposed on Tehran, reports the BBC.

BDST: 2046 HRS, MAR 29, 2015