BlackBerry users in Europe, the Middle East and Africa were suffering a second day of problems on Tuesday, just hours after Research In Motion Ltd, maker of the devices, said it had fixed a huge outage.
Network operators and users tweeted that email and BlackBerry Messenger services were not working from around 1100 GMT (7 a.m. EDT). Reuters correspondents also reported problems with email services.
Network operator T-Mobile said on its website that the problems were due to a European-wide outage on the Blackberry network.
It said: RIM has apologized for the interruption to services and said it's working to restore normal operations.
Earlier RIM said it had restored BlackBerry services in the region, some 20 hours after users in EMEA and India first reported problems with email and BlackBerry Messenger.
Yesterday, some BlackBerry subscribers in the EMEA region experienced delays with BlackBerry services. The issue was resolved and services are operating normally, RIM said in a statement. We apologize to those customers who were impacted for any inconvenience.
RIM was not immediately available for further comment.
RIM is increasingly seen as a break-up or takeover target as it has been losing its status as the corporate email service of choice to other smartphones led by Apple Inc's iPhone, and after a dismal set of quarterly results last month.
(Reporting by Georgina Prodhan and Paul Sandle; Editing by Will Waterman and David Holmes)