The Foreign Secretary has emphasised "close co-ordination" on Middle Eastern security in a call with her US counterpart as Washington threatened its "most intense day" of strikes on Iran.Yvette Cooper's conversation with US secretary of state Marco Rubio on Tuesday evening came after American B1 bombers took off from RAF Fairford in Gloucestershire and explosions were reported in Tehran.

The Foreign Secretary has emphasised "close co-ordination" on Middle Eastern security in a call with her US counterpart as Washington threatened its "most intense day" of strikes on Iran.Yvette Cooper's conversation with US secretary of state Marco Rubio on Tuesday evening came after American B1 bombers took off from RAF Fairford in Gloucestershire and explosions were reported in Tehran.