Apple has withdrawn a popular iPhone app facilitating crowdsourced reports of U.S. immigration agent activity, following allegations that the decision was made under pressure from federal authorities.

The app, known as ICEBlock, allowed users to anonymously track and report sightings of Immigration and Customs Enforcement (ICE) agents. As of Friday, the app had been taken off the App Store, with developers indicating that they were informed it was removed due to 'objectionable content.'

The application's developers expressed their surprise in a social media post, stating, The only thing we can imagine is this is due to pressure from the Trump Administration. We have responded and we’ll fight this! Last month, the app reportedly garnered over 1 million users. However, those who had already downloaded it can continue to use it as it remains functional for existing users.

In a statement to media, Apple remarked that it designed the App Store to maintain a safe environment for users and cited information received from law enforcement regarding potential safety risks associated with ICEBlock.

Following the Trump administration's ramped-up immigration enforcement tactics, usage of applications like ICEBlock has surged. Authorities have criticized such technologies, particularly following an incident in Dallas where a gunman targeted an ICE facility, searching for apps meant to track ICE presence.