Dhaka, Oct. 3 -- Apple has removed a mobile app that allowed users to track and anonymously report sightings of U.S. immigration officers, reportedly under pressure from authorities.

The app, known as ICEBlock, was taken down from the App Store on Friday. The free, iPhone-only platform had relied on crowdsourced reports to flag Immigration and Customs Enforcement (ICE) activity and, according to its developer, had already reached more than one million users.

"We just received a message from Apple's App Review that #ICEBlock has been removed due to 'objectionable content.' The only thing we can imagine is this is due to pressure from the Trump administration," the developer wrote on social media, vowing to appeal the decision.

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