ORLANDO -- Orlando Mayor Buddy Dyer has called for an official day of mourning in the city as two law enforcement officers were killed in the line of duty Monday.

An Orlando Police officer, Master Sgt. Debra Clayton, was fatally shot, allegedly by suspect Markeith DaMangzlo Loyd.

Orange County Deputy First Class Norman Lewis was also killed in a car crash as he was responding to the shooting scene. The deputy was hit while riding on Pine Hills Road and Balboa Drive around 11 a.m. when a driver turned into the oncoming path of his motorcycle.

According to the Orlando police, Clayton was shot and killed when she found Loyd in the parking lot of a Walmart at the corner of Princeton Street and John Young Parkway. Loyd then carjacked a vehicle, and was seen by a captain from the Orange County Sheriff's Office. The captain was shot as he got behind the vehicle Loyd was driving.

OPD posted on Twitter a video of Clayton's casket leaving the hospital.

A massive law enforcement manhunt in the area of near Cinderlane and Rosemont is underway. Authorities warn to not approach Loyd.

Loyd is also wanted in the December 13 murder of his pregnant girlfriend, according to WKMG. Loyd allegedly shot Sade Dixon, 24, a mother of two, as she opened the door for Loyd. Dixon's brother was also shot when he intervened to help her following the gunshots.

Drivers are being asked to avoid the area. 13 schools in the area near the shooting are also on lockdown.

Keep checking this page for the latest information on this breaking story.