A math teacher at an exclusive prep school in Philadelphia claims in a racial-discrimination suit that he was fired without cause after school officials alleged he sent inappropriate text messages to a female student.

Attorneys for Arthur "Chuck" Matthews say the veteran teacher was fired even though the young woman and her parents said the messages contained nothing improper.

The federal lawsuit alleges Matthews' termination from Springside Chestnut Hill Academy was part of a pattern of discrimination at the "predominantly Caucasian" school, according to a report in The Philadelphia Inquirer. Matthews is black.

A school spokeswoman says the school does not comment on pending litigation.