TULSA, Oklahoma - Tulsa's River Spirit Hotel and Casino reopened early Friday after tribal police evacuated them because of a bomb threat.

A spokesman for the casino tells News On 6 someone called the Tulsa Police Department and said a bomb was going to go off in the casino at 11 p.m. Thursday.

Tulsa police transferred the call to tribal police, who then evacuated the casino and hotel, which are located on Riverside Drive.

Police searched the buildings and then gave the all-clear just after midnight.

"They told us they had to be evacuated immediately. Later to know that there was a bomb threat. And as far as we know, everyone's going home at this point," said Nos Jasim, a witness.

Tulsa Police tell News On 6 another bomb threat was made to the Walmart at 81st and South Lewis at around the same time. Nothing was found there, either.

Police say they do have a suspect they are looking for, but haven't released that person's name.