(CNN) -- The Turkish military said it has killed 22 Kurdish rebels in a military operation in the country's turbulent southeastern region.
Turkish tanks on the move earlier this year in southeastern Turkey.
The military, in a statement, said it conducted an operation in the mountains of Sirnak province from Friday through Monday.
Turkey's military says the rebels were believed to be gearing up to mount an attack.
One of those killed, the military said, was a senior member of the Kurdistan Workers' Party, or the PKK -- a Kurdish separatist group regarded as a terror organization by Turkey.
Turkey has been taking cross-border military action, including airstrikes and artillery shelling, against the PKK in retaliation to attacks by the group on targets in Turkey from bases in the Kurdish region of northern Iraq.
Turkey has also been carrying out small ground operations into Iraq, forays characterized as "hot pursuit" incursions with a few hundred commandos responding to a particular threat.