Authorities were searching for a gunman who shot and wounded two Los Angeles County sheriff’s deputies who were sitting in their squad car – an apparent ambush that drew an angry response from President Donald Trump on September 13 and sparked an anti-police protest outside the hospital where the deputies were being treated. The 31-year-old female deputy and 24-year-old male deputy underwent surgery on September 12, Sheriff Alex Villanueva said in a late-night news conference. Both graduated from the police academy 14 months ago, he said. The deputies were shot while sitting in their patrol car at a Metro rail station and were able to radio for help, the sheriff said. Villanueva, whose department has come under fire during recent protests over racial unrest, expressed frustration over anti-police sentiment as he urged people to pray for the deputies. The department tweeted video of the shooting that shows a person open fire through the passenger-side window of the patrol car. “The gunman walked up on the deputies and opened fire without warning or provocation,” the department stated. The video sparked thousands of reactions, including from President Donald Trump, who responded, “Animals that must be hit hard!” Trump said: “When we find that person, we’ve got to get much faster with our courts and we’ve got to get much tougher with our sentencing.” “This cold-blooded shooting is unconscionable and the perpetrator must be brought to justice,” Democratic presidential candidate Joe Biden tweeted . “Violence of any kind is wrong; those who commit it should be caught and punished.” Protesters gathered outside the hospital where the injured deputies were being treated. “To the protesters blocking the entrance & exit of the HOSPITAL EMERGENCY ROOM yelling “We hope they die” referring to 2 LA Sheriff’s ambushed today in #Compton: DO NOT BLOCK EMERGENCY ENTRIES & EXITS TO THE HOSPITAL,” the sheriff’s department tweeted. “People’s lives are at stake when ambulances can’t get through.” A radio reporter who was near the protest scene was taken into custody. The sheriff’s department later tweeted that the reporter interfered with the arrest of a male protester. “The female adult, who was later identified as a member of the press, did not identify herself as press and later admitted she did not have proper press credentials on her person,” the department stated. After being released, Josie Huang, a reporter for public radio station KPCC, tweeted that she had seen the statements from sheriff’s officials and had “thoughts and videos to share soon after a little rest.” The executive editor of the station, Megan Garvey, expressed outrage over the arrest and said her reporter appeared to be wearing her credentials and had shouted her KPCC affiliation. Meanwhile, the search for the gunman continued. Captain Kent Wegener said officers were blanketing the area in search of the suspect seen on the video opening fire with a pistol. “We have a very, very generic description,” he said. The incident happened around 7pm a short distance from the Compton sheriff’s station south of downtown Los Angeles. The US Justice Department would assist sheriff’s investigators with “all federal tools available,” department spokesperson Kerri Kupec tweeted on September 13. Protesters have railed against the Los Angeles Sheriff’s Department for weeks over recent shootings by deputies, including the killing of a man on a bicycle last month. “Of course, there’s an important conversation going on about policing in this country, but these are folks who put their lives on the line for us, and we will find justice for them,” Los Angeles Mayor Eric Garcetti said on CNN on September 13.