Former NFL Pro Bowl tight end Russ Francis was one of two people killed in a plane crash in upstate New York on Sunday, his family announced on social media. He was 70 years old.

Francis’s younger brother Ed Francis posted a photo of his brother from a 49ers game, writing, “My older brother Russ Francis was just killed in a plane crash in Lake Placid, New York. Needless to say, my family and I are completely flattened. Flying was my brother’s lifelong passion, and perhaps a fitting way for him to go. God speed to you my big brother!!”

Francis was killed along with Richard McSpadden, senior vice president of the Aircraft Owners and Pilots Association (AOPA). Lake Place News reported the crash happened at about 4:09 p.m. Sunday. AOPA said the plane the two men were in was a Cessna 177 Cardinal and that the plane “experienced an emergency after takeoff,” according to a statement.

The New England Patriots issued a statement from team chairman and CEO Robert Kraft, saying, “On behalf of the entire New England Patriots organization, we extend our sincerest sympathies to the family of Russ Francis, who tragically passed away yesterday. Russ was a fan favorite throughout his playing career. He was a dynamic player on the field who had an even bigger personality off it. He knew no boundaries, pushed the limits and lived his life to the fullest. Our thoughts are with Russ’s family, friends, teammates and the many Patriots fans who mourn his loss.”

The San Francisco 49ers issued a statement Monday, saying, “The San Francisco 49ers are saddened to learn of the tragic passing of former tight end and Super Bowl XIX champion Russ Francis. We send our deepest condolences to the Francis family during this difficult time.”