Casey Kasem's wife reportedly won't let his children visit the legendary 81-year-old DJ who suffers from advanced Parkinson's disease.

According to TMZ, Kasem's three children -- Kerri, Julie and Mike -- have been trying to contact their father for three months. The siblings, along with other family members, friends and former coworkers of Kasem's, stood outside Kasem's home near Beverly Hills on Tuesday, holding signs and demanding to see the former host of "America's Top 40."

Kasem's wife and the siblings' stepmother, actress Jean Kasem, called the police to try having them removed.

The cause of the dispute is not known.

According to TMZ, Kasem is in "dire" condition.

Contact Tony Hicks at Facebook.com/BayAreaNewsGroup.TonyHicks or Twitter.com/insertfoot.