An unvaccinated child has died as the Texas measles outbreak reaches 124 cases. Public health officials also warn of potential spread in San Marcos and San Antonio.

A child in West Texas has died of measles, state health officials said on Wednesday, the first reported U.S. death from the highly contagious disease in a decade, as a Texas outbreak has grown from a handful of cases to more than 130 across two states.

A child died from the measles after being hospitalized in Lubbock, the first death amid an outbreak that began last month in the South Plains region, health officials said. The Texas Department of State Health Services confirmed the school-aged child's death on Wednesday but did not offer any additional details about the child's age or identity.