BONN, JUNE 15 -- East German police captured seven more fugitives wanted in connection with terrorist activities in West Germany today, raising the number of such arrests over the last 10 days to nine in a bonanza for Western antiterrorism authorities.

Officials in East and West Germany said the flurry of arrests has revealed that the secret police, under East Germany's former Communist government, regularly offered refuge, false identities and political protection to West Germans fleeing the country charged with participation in this country's radical-left terrorism.

The East German interior minister, Peter-Michael Diestel, described such links to terrorism as "one of the most shameful chapters in the history of the {East} German Democratic Republic." Diestel announced the government will continue to search for others on West Germany's most-wanted terrorist list who may still be hiding in East Germany.

Brigitte Spies-Mohr, a spokeswoman for the West German Attorney General's Office, said authorities have been hunting for about 30 West German fugitives charged with crimes in connection with a wave of terrorism that hit this country with particular force in the 1970s. Most of the suspects were linked to a group called the Red Army Faction, whose members declare they are combating imperialism and the military-industrial complex.

West German intelligence and antiterrorism authorities had long suspected some of the fugitive terrorist suspects may have found protection in East Germany, Spies-Mohr said. But previously they were unable to follow up leads, she added, because of lack of cooperation from the State Security Service, or Stasi, the East German secret police.

Under the democratically elected government now in East Berlin, the East German Interior Ministry has begun cooperating closely with its West German counterparts, according to officials from both governments.

It was unclear, however, whether West German authorities would seek immediate extradition of those arrested or await reunification, when West German law is expected to apply in what is now both Germanys.

In the meantime, West German intelligence specialists have been able to interrogate a number of former Stasi officers and share information from Stasi files since the once-powerful police apparatus has been brought under control of the government and in the process of being disbanded.

The sudden roundup of West German terrorist suspects also pointed to a rich vein of intelligence information involving other East German terrorism connections, including Middle Eastern groups, which reportedly is being mined by West German authorities.

With close relations between the U.S. and West German governments and a long history of intelligence cooperation, the new information is likely to be of assistance to U.S. antiterrorism specialists as well.

Under the former Communist government, East Germany was known as a logistics station for Palestinian extremists such as Sabri Banna, known as Abu Nidal. His group, the Revolutionary Council of Fatah, has admitted responsibility for some of the bloodiest terrorist attacks against Jewish or moderate Palestinian civilians.

East Germany, under the previous government, also made its medical facilities available for injured Palestinian combatants or underground Palestinian leaders in need of specialized or discreet care. Abu Nidal was said to have been treated in East Germany, at a time when he was widely reported dead in the early 1980s. A former Abu Nidal colleague, Wadia Haddad, reportedly died in an East Berlin hospital two decades ago after receiving treatment for leukemia.

One West German report said a former Stasi colonel employed as a liaison between such Middle Eastern groups, identified as Frank Wiegand, has taken up residence in West Germany and is cooperating with West German intelligence. His information was regarded as particularly valuable because of his rank and sensitive post.

Four of the seven West Germans arrested for suspected terrorist connections were taken into custody in predawn raids near the towns of Frankfurt-on-Oder and Cottbus and taken to East Berlin for questioning, according to Dietsel.

One of the four, Christine Duemlein, 41, was later released. West German authorities said an international mandate issued for her arrest in 1983 had been rescinded in 1988 because she was charged with membership in the Red Army Faction, but not with a specific crime.

The other three suspects -- Monika Helbing, 36; Count Freiherr Ekkehard von Seckendorff-Gudent, 49, and Werner Lotze, 38 -- are being held pending a hearing. All three allegedly played roles in kidnappings or assassinations against prominent Germans in the late 1970s, including the slaying of Hans-Martin Schleyer, an industrialist whose body was found in the trunk of a car near Mulhouse, France, in 1977.

Later in the day, three more suspects were arrested in a Leipzig railway station. The East German Interior Ministry identified them as Barbara Meyer, 35, Horst Meyer, 36, and Sabine-Elke Callsen, 29. According to reports in Bonn, West German security officials believe the Meyer couple assumed a leadership role in the Red Army Faction after the group's other leaders were killed or imprisoned in the early 1970s.

East German police two days ago arrested Inge Viett, 46, who was charged with participating in the assassination of Gunter von Drenkmann, a West Berlin judge killed in 1974. A week earlier, authorities apprehended Susanne Albrecht, accused of taking part in the 1977 assassination of Jurgen Ponto, a Frankfurt banker.