Southwest Airlines has reported bomb threats to authorities from eight separate Twitter accounts from 7-10 P.M. EST Monday night, including one from Twitter handle @ISISGangCP.

CBS News 8 San Diego is reporting that an ISIS-inspired threat was made against Southwest Flight #4200 from San Diego to Dallas.

Another bomb threat was reportedly directed at a JetBlue flight originating at Boston’s Logan airport.

The Twitter threats appear to be part of a coordinated campaign, as many of the individuals who are announcing the threats have been communicating openly on social media.

Breitbart News has documented some of the bomb threats that have been made over the past few hours:

The threats follow at least five instances of U.S. airplanes diverted on Sunday over Islamist threats made on Twitter, including Atlanta-bound flights that were grounded under escort by F-16 fighter jets that had been scrambled in response to the threats.