AUSTIN — After a gunman in Las Vegas killed nearly 60 people and injured hundreds at an open-air country music concert, the Austin Police Department is reviewing security measures for one of the nation's largest music festivals.

The Austin City Limits Music Festival, which kicks off Friday for the first of two three-day weekends of music, hosted 75,000 people each day of last year's event.

Austin Police Chief Brian Manley told the Austin NBC affiliate KXAN on Monday that officials don't plan to change anything, but anytime a tragedy occurs, they re-evaluate their procedures.

"Whenever you have an incident occur you always have to be concerned about copycats — someone that looks at this as an opportunity," Manley said. "So we will go back and review all of the security plans that we have in place. We are fortunate that ACL is an event that year after year we've been able to manage successfully and safely, and I feel confident we have plans in place to address that this year."

Before Sunday's shooting, ACL organizers had updated security measures by limiting bag sizes to 10 inches by 10 inches by 10 inches — such as a standard drawstring bag, the website says.

C3 Presents, the group that produces the festival, said in a prepared statement Monday that organizers' thoughts and prayers are with everyone in Las Vegas affected by the shooting.

"Safety has always been our top priority," the statement read. "Our staff and security team works year-round with the Austin Police Department, Austin Fire Department, Austin-Travis County EMS, and other authorities to plan and rehearse security and response plans. Over the years, tighter security measures have been implemented at ACL Fest including a layered security plan that includes elements that are seen and unseen, as well as pat downs, bag searches and size limits, and an enhanced security and law enforcement presence inside and outside the festival."