Two LAPD detectives injured in shooting outside police substation, authorities say

(CBS) LOS ANGELES - Two Los Angeles Police Department detectives were injured Tuesday morning in a shooting in the mid-city area, authorities said, according to CBS Los Angeles.

The shooting happened around 4:30 a.m. outside of the LAPD's Wilshire substation, the Los Angeles Fire Department reportedly said.

"They were undercover officers working the burglary task force here out of the Wilshire station. They pulled up to the front of the gate and as they were opening the gate, from directly behind them, somebody for some reason opened fire on their car, striking it many times," Cmdr. Andrew Smith said.

One officer reportedly suffered a hand injury and the other suffered a head injury, but they were able to return fire. The officers were transported to a local hospital and subsequently released, the station says.

According to the station, the city was placed on tactical alert following the shooting but was canceled around 8:30 a.m.

Three people have reportedly been detained for questioning in the connection with the shooting.

At least one suspect, who police say fled the scene on foot wearing all dark clothing, was outstanding, according to officials.

About 200 officers from several LAPD divisions, four K-9 units and the Culver City Police Department have locked down a 25-square-block area for an investigation, the station reports. The injured deputies were also reportedly able to return to the scene of the crime to help.

Authorities believe Tuesday's incident was isolated, but are taking extra precaution, according to the station.

"We've supplemented the security at all our police stations in case this was something other than a random act against our officers," Smith said.