NTSA said in a statement that the system failure was due upgrading of security features in a bid to deliver better quality of services. “The Authority recently reviewed its business processes and upgraded its infrastructure including implementation of additional security controls within the TIMS system. Due to these, we have regrettably experienced some service interruptions. We are however working around the clock to stabilize the system for better performance,” the statement read in part. NTSA did not say when it expects things to be back to normal, only adding that it will keep people updated. “We will keep you updated and apologize for the inconveniences caused.”