By: KDKA-TV News Staff

MONACA (KDKA) — The Shell cracker plant in Monaca says it has expanded COVID-19 testing of workers following the Thanksgiving holiday.

The onsite testing lab has doubled its capacity and was open Sunday for workers who had traveled out of state.

The company says that as of Tuesday, there were 77 cases of Coronavirus among their 7,000 workers.

They sat most of the infections were contracted off of the job site.