LOS ANGELES (CBSLA.com) — Concertgoers at the Hollywood Bowl were alarmed and confused Wednesday night when a performance by Dead & Company was abruptly interrupted for several minutes.

At about 10:30 p.m., while the band was playing, the stage suddenly went dark. Crew members appeared to say something to the band, who were taken off stage. According to fans, dogs were then brought onto the stage.

“And then all of a sudden two guys came out — looked like service people — and whispered in their ear, and everybody ran off the stage, and the lights went off, and we were all kind of like, ‘what’s going on?'” concertgoer Ryan Tarzian told CBS2.

Hollywood Bowl is dark right now. No one knows what's going on. pic.twitter.com/fvolIp4pYn — brandon wenerd 🤙 (@brandonwenerd) June 1, 2017

Concertgoers were in the dark for about seven minutes before the band returned. Singer Bob Weir told the crowd, “all clear, kind of,” and then the music resumed.

A Los Angeles police spokesperson told CBS2 there was no response call to the venue, which is located at 2301 Highland Ave. The incident appeared to have been handled by private security.

The band includes former Grateful Dead members Mickey Hart, Bill Kreutzmann and Bob Weir, as well as John Mayer, Oteil Burbridge and Jeff Chimenti.

A tweet from the Bowl’s verified Twitter account published prior to the show Wednesday asked concertgoers to arrive early due to “enhanced security measures.”

“SEE SOMETHING, SAY SOMETHING,” it read in part.

Via @AHBSPresents Due to enhanced security measures, please arrive at least 20 minutes prior to ticketed time. SEE SOMETHING, SAY SOMETHING. — Hollywood Bowl (@HollywoodBowl) June 1, 2017

Crews and security dogs were checking people as they came into the venue.

Requests for comment to both the Hollywood Bowl and Dead & Company were not immediately returned.