Authorities have detained the owner and constructor of a building that collapsed during a magnitude 6.1 earthquake in northwestern Turkey.

Rescue efforts were continuing after the 6.1-magnitude temblor struck in a region that is crisscrossed by fault lines.

At least one person died and more than a dozen buildings collapsed after a 6.1 magnitude earthquake struck northwestern Turkey's Balikesir province. At least 29 people suffered injuries after the tremor shook the ground at around 7.