NAPA (KRON) -- A substitute teacher and assistant football coach at Vintage High School in Napa is facing serious felony charges for allegedly having sex with two underage teen girls.

26-year old Brock James Daniels is accused of meeting the girls on social networking sites and inviting them to his home on Wise Drive in Napa.

Investigators say the assaults started in November of 2010 and continued through last month.

Napa police arrested Daniels Wednesday.  He remains jailed with bond set at $1 million.  Charges include Oral Copulation with a Minor, police say.

School officials haven't yet commented on the allegations.  Police are looking for more details and other potential victims.  If you know anything about these or similar allegations, contact Napa police or your local authorities.

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