A man suspected of using a “makeshift flamethrower” to carry out a terror attack on pro-Israel demonstrators in Colorado was initially mistaken for a gardener by witnesses.Mohamed Sabry Soliman, 45, was carrying a garden sprayer filled with gasoline and had reportedly been lurking in the area for at least 20 minutes before the horrific alleged assault in Boulder on Sunday.

Police in Colorado are responding to a "heinous" attack at a pedestrian mall in the city that they say left several victims.

Authorities say a man posed as a gardener before launching an attack in Boulder with Molotov cocktails that injured 12 people.