WARSAW, May 23 -- The Polish Foreign Ministry has firmly condemned the terrorist attack in China's Xinjiang.

"Poland firmly condemns all forms of terror," it said on Friday. "From our Polish experience we can state that dialogue and agreement are the only methods that can bring lasting solutions to social and political tensions," the statement goes on.

The Foreign Ministry conveyed sincere and heartfelt sympathy to the families and relatives of the victims.

Explosions that rocked an open air market in Urumqi, capital of northwest China's Xinjiang Uygur Autonomous Region, on Thursday morning have left 39 dead and more than 90 injured.