Catalina Martinez, who reported on entertainment and weather for Channel 19's morning news show "A Primera Hora," is leaving the Univision-owned station at the end of the month.

Martinez (pictured) confirmed today that she has resigned, but declined to give a reason for her departure. She said she does not have a new job.

She is the fourth on-air person to leave Channel 19 in the past six months, joining Xochitl Arellano, Pablo Espinoza and Tatiana Bedoya.

(Bedoya on Saturday won a Northern California Emmy for her investigative coverage for the station.)

Neither news director Pedro Calderon or marketing director Carolina Rojas-Gore immediately returned calls seeking comment.