A pump failure caused a chemical leak early Tuesday at a manufacturing facility in northwest Houston, according to OnScene TV.

The facility uses krill to make fish oil, and authorities said the leak posed no danger to the public, OnScene TV reported.

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The leak produced a large vapor cloud in the air, and a Houston Fire Department hazmat crew was checking the air quality in the area overnight.

It's unclear what caused the pump failure. No injuries were reported.

Julian Gill is a digital reporter in Houston. Read him on our breaking news site, Chron.com, and on our subscriber site, houstonchronicle.com. | julian.gill@chron.com | NEWS WHEN YOU NEED IT: Text CHRON to 77453 to receive breaking news alerts by text message | Sign up for breaking news alerts delivered to your email here.