A Turkish court has arrested three district mayors in the country’s Southeast who were previously removed from office by the Interior Ministry, the Turkish media reported.

Savur district Co-mayor Gülistan Öncü, Mazıdağı district Co-mayor Nalan Özaydın and Derik district Co-mayor Mülkiye Esmez, all in Mardin province, who were detained following police raids on Nov.15, were arrested on Tuesday.

The mayors face charges of membership in a terrorist organization.

Ankara accuses the the Kurdish Peoples’ Democratic Party (HDP) of links to militants of the Kurdistan Workers’ Party (PKK). It has now replaced some 15 mayors from the HDP on alleged links to terrorism since municipal elections in March.

In August Turkey first removed the mayors of Diyarbakır, Mardin and Van, three metropolitan cities won by the HDP.

All the mayors, who were democratically elected in local elections on March 31, have been removed from office by Turkey’s Interior Ministry.

The controversial practice of removing and arresting mayors was also widely implemented during Turkey’s two-year-long state of emergency following an attempted coup in 2016.