Four hours after the incident, West Yorkshire Police announced that Cox had died at Leeds General Infirmary.[28][32] She was the first sitting member of Parliament to be murdered since Ian Gow was assassinated by the Provisional Irish Republican Army in 1990,[33][34] and the incident was the first serious assault on an MP since Stephen Timms was stabbed by Roshonara Choudhry in an attempted assassination in 2010.[35][36]