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MARS, Pa. (KDKA) — A second teenager has been arrested in connection to threats made in the Mars Area School District.

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Adams Township Police announced Monday that they arrested another 16-year-old girl in connection to a bomb threat made in the school district.

The first arrest connected to the incident, a 16-year-old girl who is a sophomore at the high school, was made on Friday.

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(Photo Credit: KDKA)

On Tuesday, police said a piece of paper with the phrase “Bomb 541” was found on a hallway floor at the high school, and on Wednesday, authorities say a bomb threat was found on a stall wall in the girl’s bathroom, also at the high school.

Bomb threat rumors were spotted on social media on Thursday, prompting school to be canceled Friday.

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Both teenagers are facing multiple terroristic threats charges and were transferred to the care of Butler County Juvenile Probation.