Apple has taken down an app that uses crowdsourcing to flag sightings of U.S. immigration agents, apparently after being pressured by U.S. authorities. ICEBlock, a free iPhone-only app lets users anonymously report and monitor activity by Immigration and Customs Enforcement (ICE) officers, was no longer available on Apple’s App Store as of Friday. “We just received a message from Apple’s App Review that #ICEBlock has been removed from the App Store due to “objectionable content’,” the developer said in a social media post. Even though it has been removed from the app marketplace, those who have already downloaded the app should still be able to use it. “We created the App Store to be a safe and trusted place to discover apps,” the company said in a statement to other media outlets.