I thank my hon. Friend for his question. We have only this morning received the letter from Rouhani, and we will reply to it. Fundamentally, we are urging Iran not to take escalatory steps, but to continue to meet all its commitments under the deal and indeed any broader commitments reflecting a country that wants to co-operate with others in the region and internationally. It is too early to talk about the direct consequences, but we are clear that our commitment to the JCPOA requires the full compliance of its obligations by Iran.