Mobile police arrested nine juveniles and one adult Wednesday for allegedly making bomb threats against schools and businesses.

Investigators said they have received seven reports of threats over the past 11 days. The following individuals have been charged with making terrorist threats, which is a felony:

Authorities arrested two juveniles after a threat was received at the Walmart on 101 East Interstate 65 Service Road on March 10.

One juvenile was arrested for allegedly making a threat against Baker High School on Airport Boulevard while positing a picture of a grenade on social media. During the arrest, investigators said they found a dummy grenade in the juvenile's home.

A threat was received at Pillans Middle School on Gatokoco Drive on March 13. Police said an adult female was located at the scene, but no explosives were found during the search. Along with the terrorist threat charge, the woman was also charged with giving a false name to police.

Authorities arrested two juveniles after another threat was made against Pillans middle on March 14. On the same day, two more juveniles were arrested for a bomb threat against Chestang Middle School on 2800 Berkley Avenue.

One juvenile was arrested March 15 after a threat was received at B.C. Rain High School on Dauphin Island Parkway.

Williamson High School, located on Dublin Street, received a threat Monday and one juvenile was arrested during that incident.

Lt. Matthew James of Mobile Police Department Criminal Investigation Division said the threats disrupted both school and business activities and shouldn't be taken lightly.

"Those who think making a bomb threat is funny or just want to get out of school will be arrested and prosecuted to the fullest extent of the law," James said.