According to reports, the 'Toxic' hitmaker has been the recipient of a number of letters containing threatening language and 'weird gibberish'. And the situation has become so off-putting that Spears' camp is planning to hand the unwelcome mail over to local law enforcement and the FBI, the source said.
Los Angeles Police Department spokeswoman Officer Ana Aguirre told E! News that no specific investigation has yet been launched in Spears' case, but the authorities "have been looking at allegations that have cropped up in the past couple of months."
"A lot of it was disturbing stalker kind of stuff. But to be safe her security team is turning it all over to the police and FBI," E! Online quoted the source, as saying.