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– Prime Minister David Cameron, “The attack on the British Embassy in Tehran today was outrageous and indefensible. The failure of the Iranian government to defend British staff and property was a disgrace…We hold the Iranian Government responsible for its unacceptable failure to protect diplomats in line with international law. The Iranian government must immediately ensure the continued safety of our staff, return all property and secure the compound immediately. Those responsible for this criminal attack must be prosecuted.

The Iranian Government must recognise that there will be serious consequences for failing to protect our staff. We will consider what these measures should be in the coming days.”

From 10 Downing Street Website