CONROE, Texas (KTRK) -- The Conroe Police Department said an investigation is underway after city council members said they and their families have received harassing calls or death threats.

The allegations come days after the city council voted against putting a measure related to the city's use of Flock license plate reader cameras on the Nov. 3 ballot.

RELATED: Conroe City Council rejects proposal to let citizens decide on Flock camera use in the city Councilmember John Sellars said he recently received a death threat over the phone.