BERLIN, Jan 3 (Reuters) - German federal police are

experiencing a countrywide IT systems outage at airports, a

spokesperson said on Friday, forcing officers to manually

process passengers arriving from outside Europe's free-travel

Schengen area.

"There is currently a nationwide IT disruption," the

Frankfurt-based spokesperson said, adding that the cause was

unknown.

He said entry into Germany is delayed but possible and there

is currently no bigger congestion at Frankfurt airport, the

country's busiest.