A Florida high school science teacher was fired Tuesday for not complying with his school district's mask mandate.

John Alvarez was dismissed from his teaching position at Piper High School after the School Board of Broward County unanimously voted for his termination, citing gross insubordination.

Alvarez intends to appeal the decision to an administrative law judge, according to a report.

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Broward implemented a mask mandate for school students and staff at the start of the school year, per the Centers for Disease Control and Prevention's recommendations, but voted to end the policy in November.

Alvarez refused to put on a mask during a March fire drill and continued his pattern of refusal when the school year returned in August, school officials said.

A suspension of five days was recommended for Alvarez.

However, hearings on the suspension had to be postponed due to the science teacher's continued refusal to wear a face covering, the report noted.

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"His behavior is probably more of an issue than the issue of not wearing a mask. He refused to come back, saying he was never going to comply," school board member Rosalind Osgood said, according to the report.