Germany works to fix air traffic control software glitch

Germany's air traffic control agency says a software issue that has caused disruption for several days won't be resolved until at least midweek.

The problem at a control center in Langen, just outside Frankfurt, emerged last Wednesday. It has forced control agency Deutsche Flugsicherung to reduce capacity in the air by 25 percent in recent days over southwestern Germany and led to some flight cancellations at Frankfurt Airport, Germany's busiest.

Deutsche Flugsicherung said Monday that technicians "are working intensively to analyze the error." It said they will try to get alternative software running on Wednesday night.

The agency, which stressed that safety is assured, said that its other air traffic control centers in Germany aren't affected.