Actor Austin Butler is bereaved over his mother Lori Butler's death.

The 23-year-old actor revealed the news on Twitter, but he didn't discuss the cause of death, reports eonline.com.

"Lori Butler, my mom, my hero, & my best friend passed away this morning. Lets all celebrate her. I love you and will miss you every day Mom," he tweeted.

Actress Vanessa Hudgens, who is dating Butler, tweeted her condolences.

She wrote: `#ripLoriButler #celebrateLori spread the love for Lori.`