Turkish police on Monday arrested at least 11 people for their suspected links to Fetullah Terrorist Organization (FETO), the group behind the 2016 defeated coup, security sources said.

The arrests came after the country’s prosecutors issued arrest warrants for 27 suspects.

The Chief Public Prosecutor’s Office in the capital Ankara issued warrants for a serving soldier and four former soldiers — who either resigned, retired or were expelled.

In northern Samsun province, prosecutors issued warrants for two expelled soldiers and 20 military students.

Police conducted anti-terror operations in the capital Ankara, Istanbul, eastern Erzurum, northern Trabzon and

Read more: Turkey: 11 FETO terror suspects arrested