Google Inc has been ordered by city police to suspend its “Street View” service in the Indian IT hub of Bangalore, the company said on Tuesday, in the latest setback to its global mapping project that has been hit by privacy fears.

The technology giant has sent a fleet of cars around the globe to capture millions of images used with maps as part of its panoramic Street View service, but faces regulatory challenges from authorities across the world on data protection concerns.

“We received a letter from the commissioner of police regarding Street View. We are currently reviewing it and have stopped our cars until we have a chance to answer any questions or concerns the police have,” Google said in a statement.

The commissioner of police declined to elaborate on the reasons for the letter when contacted by Reuters.

Bangalore is the leading IT hub in Asia’s third-largest economy, where Google employs thousands nationwide and where global technology giants such as Microsoft, Yahoo and Intel also have offices.

Google began collecting images three weeks ago in Bangalore, the first Indian city targeted by Street View.