Two people have been killed and two more critically injured when a gunman opened fire on two motorists and a Metro bus in the US city of Seattle.
According to reports, the gunman then caused a collision as he tried to flee in a stolen car during afternoon rush hour.
The suspect was arrested but his motive was not immediately clear.
In a press briefing, Deputy Police Chief Marc Garth Green called the shootings a "random, senseless act".
The suspect, who was not identified, is being treated for non-life-threatening injuries

EU vows financial backing for Kyiv
Bus collision blaze kills 20 in southern India, media say
Rubio warns West Bank annexation could endanger Trump's Gaza plan
Nearly 700 people flee to Thailand after Myanmar scam centre raid
