BERLIN (Reuters) - Concern that more than 1,000 people were wrongly granted asylum by Germany’s migration agency may lead to personnel changes at the agency, the interior minister signaled on Tuesday.

FILE PHOTO: A sign is pictured on an office building of the Federal Office for Migration and Refugees (BAMF) in Berlin, Germany, October 15, 2017. REUTERS/Fabrizio Bensch/File Photo

The minister, Horst Seehofer, told a newspaper an investigation was underway at the Bremen office of the agency, and he would make decisions about “organizational and, if necessary, personnel changes” next week.

“I’m doing all I can to get to the bottom of it,” Seehofer told Mittelbayerische Zeitung, saying that an internal report by the Federal Office for Migration and Refugees (BAMF) showed that mistakes had also been made at other offices besides Bremen.

The report that 1,000 migrants may have been granted asylum even though they fell short of the required criteria has resonated politically in Germany where a flood of migrants, mostly from the Middle East, is seen as having helped boost support for the far right.

“A great deal must be done, not only in Bremen,” Seehofer said, adding that the agency had received initial tipoffs about problems in the agency’s Bremen office as early as 2016.

Seehofer’s ministry, which approved his words as published by the newspaper, said BAMF was investigating 10 of its 70 outposts, affecting some 8,500 cases.

Der Spiegel magazine reported that BAMF Director Jutta Cordt was informed about problems as early as February 2017.

Daily newspaper Bild reported the Nuremberg-Fuerth public prosecutor’s office had begun investigating Cordt on suspicion of facilitating illegal residence, and was also looking into complaints against three other senior BAMF officials.

Neither the prosecutor’s office nor BAMF were immediately available for comment on that report.

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Earlier, BAMF did not comment on the number of offices being investigated but confirmed the agency’s leadership had received an initial email about reviewing the Bremen asylum applications.

Seehofer told the newspaper he would welcome a parliamentary investigation, but would also investigate the issue with “no regard” for reputations of people or institutions.

More than 1.6 million migrants, many from the Middle East, have arrived in Germany since 2014, becoming a hot political issue which helped propel the far-right Alternative for Germany into parliament for the first time in last year’s election.

The AfD has called for a wider parliamentary investigation of Chancellor Angela Merkel’s handling of the migrant crisis.

In April, prosecutors said they were investigating the former head of BAMF’s Bremen office, who is suspected of granting asylum to some 1,200 people who did not qualify for it, the majority of them members of the Yazidi ethnic group.