The Burbank Police Department has increased patrols around the Warner Bros lot following a threat targeting the studio, Lt. Jeff Barcus told Deadline Tuesday evening.

Barcus said the threat was made by phone to the police department today around 1 p.m. PT. He declined to discuss the nature of the threat but said: “It was very, very general.”

The lieutenant added that police personnel plan to meet with Warner Bros security about the call. Meanwhile this evening, the studio told Deadline it had no knowledge of any “credible” threats.

“We have not been made aware of any credible threats, but continue to coordinate with local authorities and monitor the situation, as we do in any such circumstance,” Warner Bros said in a statement.

It was unclear if the WB threat was connected to those received earlier today at the SAG-AFTRA offices in the Miracle Mile neighborhood of Los Angeles. Employees were told to evacuate the building after an unspecified threat of an attack was reported this afternoon.

As Deadline previously reported, an LAPD spokesperson confirmed that a phone call was made “saying that they may be attacking the SAG office.” On the recommendation of the police department, the guild closed its offices. After several hours, nothing suspicious was found.