If you’ve heard a series of loud explosions over the last hour, don’t panic. Twitter users initially worried that the electric grid may have blown in lower Manhattan again, but the loud noises are actually due to a series of controlled detonations reportedly orchestrated by the FBI.

According to NBC News, the “FBI says they will help US Parks police safely explode damaged explosions after #Sandy 6X over next 30 minutes on Ellis Island.” ABC and MSNBC’s Contessa Brewer also reported the incident.

ABC News anchor Diana Williams tweeted that New Yorkers should expect six blasts. Judging from Twitter, the explosions were heard around the city, from Brooklyn Heights to Park Slope to Manhattan.

Ellis Island itself experienced extensive damage during the storm and is closed “for the foreseeable future.”

The Observer has reached out to multiple sources for independent confirmation. A representative at the New Jersey Attorney General’s Office told us the FBI issued a press release about the issue, so we left a message for them. The Mayor’s office directed us to the National Parks Service, which directed us to the Department of Interior, where we left a message. We also contacted the NYPD, which promised to get back to us soon. Fun with government runarounds!

Update:

According to a press release published by the AP: