OSHA is investigating a pipeline explosion that happened in Pearsall this afternoon that killed one worker and hospitalized two others.

Authorities say that the explosion happened around 12:30 p.m. Wednesday afternoon about 55 miles Southwest of San Antonio.

The workers were employed by Nexus Integrity Management based out of Corpus Christi.

A U.S. Labor Department spokesperson says that OSHA will release its findings about what happened once the investigation is complete which could take months.