President Donald Trump and other prominent American political figures are heading to Arizona to speak at a memorial for Charlie Kirk, the 31-year-old conservative activist who was killed two weeks ago.

The event, organised by Turning Point USA (TPUSA), is on Sunday at State Farm Stadium in Glendale and could be attended by more than 100,000 people.

Heightened security is expected, including TSA-level screening, according to TPUSA.

Kirk, who co-founded Turning Point USA when he was 18, was shot at a speaking event on a Utah university campus on 10 September, reigniting concerns about political violence in the US.

A polarising figure, differing perspectives about his legacy and possible motives for the shooting have exacerbated deep divisions in the US.

In addition to Trump, those expected to speak at the service include Kirk's widow, Erika, who took over his role as TPUSA CEO; Vice President JD Vance; Donald Trump Jr; Tucker Carlson; and Stephen Miller.

Doors open at 08:00 local time (16:00 BST) with the official program due to start at 11:00 (19:00 BST). The stadium can hold just over 63,000 people, with a nearby 20,000 capacity stadium set up as an overflow area.

The event is also being live-streamed on Charlie Kirk's Rumble account. Enhanced security measures will be in place, following a reported incident involving a man who exhibited suspicious behavior at the venue.

As tensions remain high following Kirk's killing, the motives behind the shooting continue to be investigated, with discussions surrounding the political implications of his death.