Hollywood is mourning the loss of Harold Ramis.
The famous comedy filmmaker, who is arguably best known for directing Groundhog Day and CaddyShack, passed away today at the age of 69.
According to a statement, the beloved writer died from complications related to autoimmune inflammatory vasculitis, a condition that he had suffered from for the past four years.
"His creativity, compassion, intelligence, humor and spirit will be missed by all who knew and loved him," the statement added.
Celebs have been taking to Twitter today to pay tribute to the beloved Analyze This director, whose noteworthy writing credits include National Lampoon's Animal House, Stripes and Ghostbusters. Here's what the stars are saying:
Margaret Cho: "Harold Ramis, you, my first comedy crush. You came to my show in Chicago, I was humbled beyond words. My heart won't recover from this. #RIP
Ralph Macchio: "RIP Harold Ramis - A creator of often outrageous comedy yet always laced with heart. If u don't recognize his name. Look it up!"
Patton Oswalt: "No Harold Ramis, no comedy as we know it today. #RIPHaroldRamis"
Thomas Lennon: "Harold Ramis. One of the best ever."