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Update 4:50 p.m.: Safety officials say a small chemical vial in a materials science lab ruptured. When employees went to check out the noise they noticed an unusual smell and followed proper emergency protocols.

Investigators concluded there was no puddle and the scene was cleared. Employees were allowed back in the building at about 1:45 p.m.

No employees were injured or exposed.

HAMPTON-HAZMAT teams are at NASA Langley in Hampton to deal with a chemical spill.

It happened around 10:35 a.m.

About 70 people were asked to leave a materials sciences building as a precaution, but no one was exposed to the chemical, NASA Langley spokeswoman Kathy Barnstorff told WVEC.com.

She characterized the spill as 'small' and that it was contained to one room.

Barnstorff stated the HAZMAT team was called because it wasn't clear what kind of chemical has spilled.

The employees were still out of the building at 1:00 p.m.

Technical help was being given by the Newport News Regional Hazmat Team.

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