After the Istanbul bombing last week, Turkey attacked Kurdish militants.

On Sunday, Turkey bombed Kurdish fighters in northern Syria and Iraq shortly after a blast in Istanbul killed six people.

Defence Minister Hulusi Akar said in a statement that in the attacks, military bases of the Kurdistan Workers’ Party, or PKK, and the Syrian People’s Protection Units, or YPG, were targeted.

Great success was achieved in destroying terrorist shelters, bunkers, caves, tunnels, and warehouses, as well as terrorist headquarters, Akar said. 

“Direct hits were used to destroy both.”

Turkey’s defense ministry says it carried out airstrikes in Derik, Syria, on Nov. 20. People look at a site hit by Turkish airstrikes that destroyed an electricity station in Taql Baql village.

The PKK and the YPG were accused of carrying out last Sunday’s bombing in Istanbul, which killed six people and wounded dozens more. Both groups have repudiated the charges.

The Turkish presidential spokesman, Ibrahim Kalin, tweeted that it was time for reckoning on Istiklal Avenue, where the bombing occurred.