Despite rumors of a planned terrorist attack by the Islamic State, WWE continued on with its "Survivor Series" event in Atlanta Sunday, as a sell-out crowd endured long lines and beefed-up security..

More than 14,000 people filled the Philips Arena for the pay-per-view event, which went off without a hitch. Security was ramped up for the event after The International Business Times reported on Saturday that hacktivist group Anonymous had uncovered a terror plot from ISIS to attack the U.S., Indonesia, Italy and Lebanon as well as Paris on Sunday. The hackers reportedly said the target in the U.S. was the Philips Arena in Atlanta during WWE’s annual event.

“In the face of uncertainty, 14,481 strong (and LOUD) showed up to #SurvivorSeries,” WWE wrestler and Executive Vice President Paul “Triple H” Levesque tweeted out after the event on Sunday. “#ThankYou to the local and national authorities for ensuring everyone's safety tonight @PhilipsArena.”

When rumors of the planned attacks first surfaced on Sunday, Triple H also announced on Twitter that WWE spoke with local and national law enforcement officials and that security was to be ramped up for the event with doors opening earlier than originally planned with spectators encouraged to take public transportation and that bags would not be allowed in the arena.

WWE and Philips Arena released a joint statement confirming there wasn’t “specific information involving a threat against” the event but that security would be increased to ensure the safety of its guests.

Officials for the FBI also confirmed in a statement over the weekend that it was aware of an alleged threat from ISIS, but the bureau didn’t have “specific or credible information of an attack.”

“While we take all threats seriously, we do not have specific or credible information of an attack at this time,” J. Britt Johnson, special agent at the FBI Atlanta Field Office, said in a statement. “We have, however, made the proper notifications as we continue to work closely with our law enforcement and private sector partners to keep our community safe.”

Jim Butterworth, director of the Georgia Emergency Management Agency, told Fox 5 Atlanta he didn’t think the threat to the arena was specific. He added, however, “in light of the world we live in, we take the suggested possibility of attacks seriously.”