Police are investigating three burglary incidents involving Denver marijuana dispensaries that took place a little past midnight on Tuesday, weeks after Denver police issued a bulletin warning pot businesses about an increase in crime targeting them.

Police reports showed officers responded to burglaries at Denver Recreational Dispensary on Bannock Street, MJG Golden Meds on Oneida Street and Wolf Pac Cannibus on Colorado Boulevard early Tuesday. The incidents were reported between 2 a.m. and 2:50 a.m.

It’s not clear if the incident are connected since police declined to provide police reports for each case, citing ongoing investigations. The department did issue a brief statement saying it’s noticed a rise in marijuana business burglaries.

“There are a variety of reasons marijuana businesses are targeted,” Denver police spokesperson Jay Casillas said in an email. “It is mainly to steal marijuana, marijuana products, and money.”

According to the Denver Post, at least 10 dispensaries and cultivation sites in Denver reported burglaries during the first two weeks of April, compared to eight that were reported during all of April 2019.