Police say a 25-year-old Northern Irish truck driver has been arrested "on suspicion of murder." "This is a tragic incident where a large number of people have lost their lives. Prime Minister Boris Johnson tweeted that he was "appalled by this tragic incident." Shocked & saddened by this utterly tragic incident in Grays. Ireland's police force, An Garda Síochána, said it was monitoring the UK investigation, "and will provide every assistance possible."

Source: CNN October 23, 2019 08:50 UTC