US Vice-President Kamala Harris called for a ban on assault weapons in the country and the passage of much-delayed gun control legislation.<br />''<br />''Ms Harris was attending the funeral of the oldest person killed in a supermarket in Buffalo on 14 May.<br />''<br />''That shooting came just 10 days before an attack on a Texas primary school left 19 children and two teachers dead.<br />''<br />''The Vice President said that everybody has to stand up against the violence and agree that this should not be happening in the country.<br />''<br />''Saying that over 200 mass shootings have taken place this year, Kamala urged legislators to take action. <br />