Some reports claim the UK Amb. in Tehran was arrested while photographing today's protests against the downing of Ukraine Int'l Airlines flight #PS752 by the Revolutionary Guards (IRGC).
"He was informed of [Iran's] protests after his arrest. This ambassador was released hours later following mediation by the Foreign Ministry. However, word is that he will be summoned tomorrow & the issue will be followed up."
"A store opposite Amir Kabir University was the main location for the UK Ambassador's coordination during this course of events, informed sources said to Tasnim."