Charlie Kirk's widow, Erika, has given a tearful address in which she thanked first responders for trying to save her husband's life after he was fatally shot on a Utah university campus.

In a livestream, standing beside her husband's empty chair that he used during podcast tapings, she quoted the Bible and spoke about his love for President Donald Trump, Vice-President JD Vance, the United States, and the couple's two children.

Kirk, a right-wing activist, was shot dead on Wednesday during an open-air speaking event in Orem, Utah. His suspected killer, Tyler Robinson, was arrested on Thursday night after surrendering to police.

In her remarks, Mrs Kirk pledged: "My husband's voice will remain".

The broadcast from Turning Point USA's headquarters in Arizona began with several minutes of silence, as the camera framed Charlie Kirk's empty chair.