Camila Domonoske | St. Louis Public Radio

Camila Domonoske

The NAACP has issued a travel advisory for the state of Missouri, citing recent "race-based incidents" and new state legislation that makes it harder for fired employees to prove racial discrimination.

It's the first time the national civil rights organization has issued a travel warning for an entire state, the Kansas City Star reports.

The group warns "African American travelers, visitors and Missourians" to "exercise extreme caution" in the state.

A gunman opened fire on a gay nightclub in Orlando, Fla., early Sunday morning, killing at least 50 people in the deadliest mass shooting in recent U.S. history before being shot dead by police.