FRANKFURT: Prosecutors in several German regions have launched probes of companies offering free Covid-19 tests after news reports said that some were padding their numbers to claim more money from the government.

Prosecutors raided a company in the northwestern city of Bochum on Friday, according to the Suddeutsche Zeitung newspaper, while farther north in Luebeck, prosecutors have opened a fraud probe, the WirtschaftsWoche weekly said.

In Cologne, authorities carried out a surprise control of a testing centre, and the city of Munster has revoked the license of a company that operates around 50 testing centres. In an effort to boost Covid-19 testing, the German government made testing free several weeks ago, reimbursing companies up to 18 euros ($22) for each test conducted.

But according to a joint investigation by several media companies, the testing centres do not have to furnish any documents to prove how many people they’ve tested when filing for government compensation and several have been inflating the figures.

“They just have to send the number of tests (carried out), without any proof, and they are wired the money soon after,” according to a joint investigation by NDR and WDR public television and Suddeutsche Zeitung.

According to the investigation, one centre declared 422 tests, when only around 100 people had come in. Another filed for reimbursement of 1,743 tests done in a single day, when only 550 people had come in.