Westminster attack: 75-year-old man becomes fourth victim – as it happened

Police name Khalid Masood, 52, born in Kent as man responsible for attack in which four victims have died and seven more are critically injuredThis live blog is closed. Follow latest developments herePolice unravel multiple aliases of Westminster terrorist Khalid Masood 6.03am GMTThis live blog is now closing. Live coverage continues here: Related: London attack: police investigate terrorist Khalid Masood as death toll rises – live6.01am GMTHere is what we now know about Wednesday’s