Italian journalist Cecilia Sala has arrived back in the country’s capital after being freed from an Iranian prison where she had spent weeks in detention.

Cecilia Sala, 29, was arrested on 19 December, three days after an Iranian engineer was detained by Italian authorities in Milan on suspicion of supplying drone technology that led to the deaths of US soldiers. Reports said she had been held in solitary confinement in Tehran's notorious Evin prison.