A moderate earthquake with a preliminary magnitude of 5.5 shook the Turkish capital early Thursday, rocking beds and swaying wardrobes, waking up residents from their sleep, authorities said.

The epicenter of the quake was in the town of Bala near Ankara, said Dogan Kalafat, an official from the Istanbul-based Kandilli observatory.

A magnitude 5.7 temblor had also rocked Bala last Thursday, damaging around 20 houses and bringing down a minaret of a mosque in a village near the town of Bala.