ISTANBUL: Turkish police have arrested one person suspected of having a direct link to the deadly suicide bombing that killed 10 Germans in Istanbul’s main tourist area, officials said Wednesday.

More than a dozen other suspected Daesh militants were detained in other parts of the country, but they don’t appear to be tied to Tuesday’s attack just steps from the Blue Mosque in the historic Sultanahmet district.

The suspect with a link to the attack was detained in Istanbul late Tuesday, Interior Minister Efkan Ala said during a news conference with his visiting German counterpart. He didn’t provide further details, including whether the suspect was considered to be a key participant.

Turkish media reports said police had raided a home in an affluent Istanbul neighborhood, detaining one woman suspected of having links to the Daesh group, although it wasn’t clear if she was the suspect Ala was referring to.

On Wednesday, Turkish police also arrested 13 suspected Daesh militants, including three Russian nationals. But it wasn’t clear if those arrests were directly linked to the Istanbul bombing.

Officials initially said that at least eight Germans were among the dead in Tuesday’s explosion. On Wednesday, German Foreign Ministry spokeswoman Sawsan Chebli said the number had risen to 10.

German Interior Minister Thomas de Maiziere said there was no sign that Germans were specifically targeted.

“According to the investigations so far, there are no indications that the attack was directed specifically against Germans, so there can’t be any connection to our contribution to the fight against international terrorism,” de Maiziere said.

Germany committed Tornado reconnaissance jets to the military effort against the Daesh group in Syria following the November attacks in Paris, and started flying missions from the Incirlik air base in Turkey last week.

It also sent a tanker aircraft, as well as a frigate to help protect a French aircraft carrier in the eastern Mediterranean. It hasn’t taken a direct combat role, however.