View photosMoreAn illustration picture shows the logo of car-sharing service app Uber on a smartphone next to the picture of an official German taxi sign September 15, 2014.

ABU DHABI Reuters - Ride-hailing services Uber UBER.UL and Careem have suspended services in Abu Dhabi, the capital of the United Arab Emirates, since Saturday and did not know when they could resume operations, they said on Sunday.

This is a temporary suspension and we will let you know of any further updates, an Uber spokesman in Dubai said via email.

He did not respond to a question on the reason for the suspension.

Christian Eid, vice-president of marketing and communications for Careem, a Dubai-based company, said many of its drivers were being stopped by authorities in Abu Dhabi, apparently over licensing issues, and as a result had become nervous and were staying off the roads.

This had forced Careem to halt services there, he said.

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