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

Israeli airforce pounds Beirut, Lebanon death toll rises
Hezbollah warns Israeli residents to evacuate towns near border
US House rejects war powers resolution, backs Trump on Iran war
Saudi Arabia, Qatar, Kuwait intercept drones targeting territory
GCC and EU ministers urge immediate halt to Iranian attacks
India's tech state Karnataka bans social media for children under 16
Indonesia says it will withdraw from Board of Peace if it does not benefit Palestinians
Trump wants say on Iran's next leader
