Superbowl officials are beefing up security ahead of Sunday's kickoff.

Homeland Security Secretary Jeh Johnson toured the University of Phoenix Stadium where the Seattle Seahawks and the New England Patriots will face off.

The recent deadly shootings in Paris, and arrest of suspects across Europe, fanned fears of more attacks around the world.  While security officials say there is no credible threat, the NFL championship game could be seen as a high profile target. 

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"There is no specific credible threat," said Johnson.  A federal coordination team had been created to work with local security officials to ensure safety of fans, players and people working for the Super Bowl. "I'm confident we will have a safe, secure and successful event."

Sunday's kickoff game received a Special Event Assessment Rating (SEAR) 1 rating, just like in previous years.  A higher level of security was declared  in 2002 following the September 11 attacks.

All fans will have to pass through metal detectors and pat downs. Security will be tight and visible all throughout the game and other Super Bowl related events.

Over 4,000 private security personnel will be deployed and nearly 3,000 Phoenix police will be on duty.

Bomb  sniffing teams will also be deployed and a network of Bio-Watch detectors will be in place to warn the public in case of a biological attack.

The Department of Homeland Security (DHS) conducted special cyber-security and anti-sniper training sessions in preparation for the highly anticipated annual championship game.

The Transportation Security Administration (TSA) is also stepping up security for airline passengers. The agency had set up more screeners and checkpoint lanes at airports.

"We will be ramping it (security) up on Sunday, there is no doubt about that," said Federal Coordinator Matthew Allen, the DHS point of contact for planning and support.

"I have every confidence the public safety agencies that represented in the planning process are going to have their best and brightest out there this weekend and we will have a very safe Super Bowl."

Tagssuper bowl, nfl championship, Seahawks, patriots, university of phoenix stadium