Former Fleetwood Mac guitarist Lindsey Buckingham was attacked and doused with an unknown substance in Santa Monica, according to law enforcement sources.

The 76-year-old musician was reportedly targeted by a woman while arriving for an appointment in the Santa Monica neighborhood. Multiple law enforcement sources confirmed the incident occurred.

According to reports, the suspect may have been stalking Buckingham prior to the attack. The nature of the unknown substance used in the assault has not been disclosed by authorities.

Buckingham served as lead guitarist and vocalist for the legendary rock band Fleetwood Mac for decades before departing the group. He was inducted into the Rock and Roll Hall of Fame as a member of Fleetwood Mac in 1998.

Local law enforcement is investigating the incident. No information has been released regarding the suspect's identity or whether any arrests have been made.