SAN ANTONIO -

After two brush fires in two days in Bexar County, the Commissioner's Court is putting a burn ban into effect.

At an emergency meeting on Thursday morning, they voted in favor of a 90-day burn ban -- effective immediately.

Fire Marshal Craig Roberts sounded the alarm after the latest brush fire flared up Wednesday off Mathis Road in South Bexar County.

Fire investigators said it was started by kids popping fireworks.

Roberts said the increase in fireworks activity this time of year, coupled with dry conditions, prompted him to take action.

"Based on the wind conditions that we are having right now ... and the kind of vegetation conditions that we are having right now, we're getting prepared," Roberts said.

Even with the burn ban in effect, people can still buy fireworks and set them off in Bexar County.

The Commissioner's Court will re-evaluate the weather conditions on Sunday to decide whether they'll restrict fireworks as well.