July 18 (Reuters) - Microsoft ( MSFT ) said on Thursday

that it was investigating issues with multiple Azure services in

the Central U.S. region, including failures with service

management operations and connectivity or availability of

services.

Low-cost carrier Frontier Airlines said its flight

operations were impacted by the outage, which caused it to

initiate a temporary ground stop, it said in a statement to

Reuters.

"The ground stop has been lifted and we are in the process

of resuming normal operations."

(Reporting by Maria Ponnezhath and Chandni Shah in Bengaluru;

Editing by Varun H K)