Times reporter Ruben Vives is reporting live in South Los Angeles, where protesters took to the streets around Crenshaw and Martin Luther King Jr. boulevards to oppose the not-guilty verdict for George Zimmerman, the neighborhood watch volunteer who killed Trayvon Martin. Times reporters Robert Lopez and Andrew Blankstein are monitoring LAPD actions.
Earlier, dozens of protesters gathered in Leimert Park for a vigil in support of Martin. Following the vigil, marchers moved along Crenshaw Boulevard chanting "No justice, No Peace."
Police estimated that 80 to 150 people began engaging in lawless activity along Crenshaw as they jumped on top of vehicles and appeared to assault bystanders.
Some protesters stormed a Wal-Mart as guards scrambled to close security gates. A short while later, Los Angeles Police Department officers wearing helmets and carrying batons swarmed the store as others marched through the parking lot.
The LAPD declared a tactical alert about 9 p.m., which means that off-duty officers can be held on duty when their shifts end and may respond only to high-priority calls.
The LAPD arrested at least one person but vowed to take more into custody if the lawless actions continued.