Rouhani roulette: How Iran's putting billions into Europe

The President of Iran, Hassan Rouhani, is expected to rubber stamp deals worth billions of dollars across Europe.

Mr Rouhani is in Europe on a five-day tour seeking to boost economic ties after the implementation of a deal on rolling back Iran's nuclear activity saw sanctions lifted.

It is the first state visit to Europe by an Iranian leader for 16 years.

Video journalist: Marcus Thompson