Harris County Sheriff Adrian Garcia tweeted:
HCSO has an active shooter scene working at Lone Star Community College on WW Thorne. Please avoid the area if possible. Details to come.
He said his team was preparing to brief the media:
HCSO patrol deputies and High Risk Operations Unit on scene at Lone Star Community College, scene is hot. Media briefing is being prepared.
More top news
Microsoft is in talks to buy parts of TikTok.
The light display had been cancelled due to concerns stemming from the coronavirus pandemic.
Theatres, casinos and bowling alleys are now allowed to reopen.