Both the NFL and NBA have issued alerts this week warning players that a recent series of break-ins and robberies at the homes of athletes may not be a coincidence.

The NBA is urging its players to take additional precautions to secure their homes following reports of recent high-profile burglaries of dwellings owned by Milwaukee Bucks forward Bobby Portis and Kansas City Chiefs teammates Patrick Mahomes and Travis Kelce.

The FBI has warned the NBA that many recent home burglaries targeting professional athletes and high net worth individuals may be connected to sophisticated, transnational theft rings, the league said in a memo obtained by Reuters on Friday.