Christy Knowings, a cast member of Nickelodeon‘s ’90s hit All That, died Tuesday, August 11, after being removed from life support at a Los Angeles-area hospital, TMZ reports. She was 46.

Knowing’s aunt, Tyleah Joseph, announced the death Wednesday on Facebook, but a cause was not disclosed.

According to TMZ, citing family sources, Knowings was placed on life support after suffering an asthma attack on August 7 that resulted in cardiac arrest. The family made the decision to take her off life support on Tuesday.

After appearing on a failed 1997 Nickelodeon sketch-comedy pilot called And Now This, Knowings joined the network’s All That the same year. She would spend three seasons on the popular show, which, at the time, included fellow cast members including Kel Mitchell, Kenan Thompson, Danny Tamberelli, Nick Cannon, Amanda Bynes and others.

Among her characters on All That were a assistant to Bynes’ dentist, Jessica from the recurring “Whateverrr!!!” skits and newscaster Brenda Stone.

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Following All That, Knowings appeared in several episodes of Sesame Street from 2008-11 alongside her twin brother Chris Knowings, who was a more frequent actor on the series and had appeared in Spike Lee’s 1994 film Crooklyn.

Knowings, who was born on February 25, 1980, in the Bronx, is the second former All That cast member to die this year following the fatal hit-and-run of Kianna Underwood in January in Brooklyn.

In her Facebook post, Knowings’ aunt wrote, “My brother Charles’ daughter Chrissy (Christy Knowings) has passed. … She was a outstanding actress, comedian, twin sister, an amazing daughter….Rest in power Chrissy.”

Complete information on survivors was not immediately available.