An investigation is underway after skeletal remains were discovered at a San Mateo home Friday afternoon. 

According to the San Mateo Police Department, a construction crew was digging underneath a home in the 900 block of 10th Avenue when they made the discovery. 

Authorities said it is unclear whether the remains belong to a human or animal.

The area has been blocked off. 

This story is still developing. Please check back for updates. 

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