Bill Russell won 11 championships with the Celtics. (Paul Marotta/Getty Images)

Legendary NBA center Bill Russell was arrested Wednesday at the Seattle-Tacoma (Sea-Tac) Airport when a loaded handgun was allegedly found in his luggage, according to multiple reports.

KING-5 News and KIRO-TV in Seattle both report that Russell, 79, was arrested after a loaded .38-caliber handgun was found during a Transportation Security Administration screening of his carry-on bag.

Russell reportedly had a permit for the weapon, which was confiscated. KIRO-TV reported that Russell, who has since been released, was cited by the Port of Seattle for carrying a weapon in a prohibited area and that the TSA will assess a monetary penalty.

KOMO News reports additional details.

The 11-time NBA champion was arrested just after 9 p.m. when Transportation Security Administration workers found a loaded .38 caliber Smith & Wesson firearm in his carry-on bag, according to Lorie Dankers with the TSA. The Port of Seattle Police arrested and cited the 79-year-old on a state charge. He was released that night, but his gun was confiscated, according to airport spokesman Perry Cooper.

In addition to winning 11 titles with the Celtics in the 1950s and 1960s, Russell was a five-time MVP and 12-time All-Star during his Hall of Fame career. After retiring in 1969, Russell went on to coach the Celtics, SuperSonics and Kings. The NBA has named its Finals MVP trophy in his honor, and Russell was on hand in Miami in June to present the award to Heat forward LeBron James.

Russell has been honored in countless ways in recent years. The Celtics announced in 2011 that Russell, who lives in Washington state, will be honored with a commemorative statue in Boston's City Hall Plaza that will be unveiled in November. In May of this year, Phil Jackson paid Russell the ultimate basketball compliment, saying that he would select the Celtics center over Michael Jordan if he was starting a team from scratch.

In recognition of his achievements both on and off the court, President Barack Obama awarded Russell the Presidential Medal of Freedom in 2011.