The Iranian parliament speaker and the US vice president will attend the upcoming signing of a memorandum of understanding between Iran and the United States in Switzerland.

A senior Iranian security official urges the US to unconditionally release all the country’s frozen assets.

From the $8 billion frozen by the Carter administration in 1979 to over $100 billion today, Iran's assets remain trapped abroad as part of a long-running US economic war against the Iranian nation.

The US reportedly agrees to release frozen Iranian assets in Qatar and foreign banks as a precondition ahead of the Islamabad talks.

Iran is allowed to access $2 billion worth of its previously frozen assets in a neighboring country.

European Union leaders have agreed to provide Ukraine with a €90 billion loan but have chosen not to use frozen Russian assets.

The proposal comes as sovereign assets are protected from confiscation under international law.