Iran on Friday denied US claims that an Iranian drone was shot down by a US Navy ship in the Gulf. Over the past few weeks, there have been a number of murky incidents involving shipping in the Gulf which the US and its allies have generally blamed on Tehran. Earlier, the Iranians said they seized a vessel on Sunday that was smuggling oil. President Trump told reporters at the White House that the drone had flown within a thousand metres of the US vessel in the Strait of Hormuz, threatening the safety of its crew. Annemarie Evans asked Professor Paul Rogers, Professor of Peace Studies at Bradford University, for his take on this latest development.