British-Iranian professor returns to UK after detention in Iran

Imperial College London professor Abbas Edalat was held in Iran for eight months on security charges.

(CNN)Abbas Edalat, a British-Iranian professor who was arrested and detained in Iran for eight months, has returned to the UK, according to British authorities.

"We can confirm that a British-Iranian dual national who was detained in Tehran has returned to the UK," a UK Foreign Office representative told CNN on Wednesday. "We continue to take action on all our consular cases in Iran in line with what we believe will produce the best outcomes in their cases." 
Iranian security forces arrested Edalat in April on security charges after he was accused of being part of a British-affiliated, anti-Iran group that allegedly launched espionage operations and had contacts with leaders of mass anti-government protests in 2009, according to Iran's semiofficial Fars news agency.