LUBBOCK — A school-aged child has died in Lubbock from measles, the first death reported in an ongoing outbreak that has infected more than 120 people in West Texas since January, Texas Department of State Health Services confirmed on Wednesday.

A child who tested positive for measles died in West Texas, the state health department said, marking the first death in an outbreak that has sickened nearly 140 people. The Texas Department of State Health Services said a school-age child died after being hospitalized in Lubbock.

At least 124 cases have been identified in Texas since late January, mostly among children and teenagers who are unvaccinated or whose vaccination status was unknown.