Police in Texas have arrested a gunman after two officers and a security guard were shot at a Home Depot.
A man and woman officer were helping the guard with an arrest at a branch of the DIY store in Dallas when gunfire erupted.
The officers suffered critical injuries and are battling for life.
There are unconfirmed reports that the victims were hit by execution-style 'head shots'.
Armando Juarez, 29, was later named as the suspect.
His mugshot and images of a white truck he was believed to have fled in were also circulated.
Juarez was said to be considered 'armed and dangerous'.
Armoured police vehicles swarmed the area while a heavily-armed SWAT team patrolled a nearby river.
Several hours later, a truck matching the description was spotted and it led police on a chase before Suarez was detained.
A female passenger was also taken into custody.
In several tweets, Dallas Police Department said: "We can confirm that two DallasPD officers have been shot and critically wounded. We will provide updates as we get them. Please pray for our officers and their families.
"A civilian was also shot in this incident. The condition of the civilian is unknown at this time."