KIEV, Feb. 18 - Ukraine's Samopomich party has quit the ruling coalition, one of its leaders Oleh Berezyuk said on Thursday, increasing pressure on Prime Minister Arseniy Yatseniuk to find new allies or risk the collapse of the government, Reuters reported.

The announcement came just a day after another party led by former prime minister Yulia Tymoshenko quit the coalition. The loss of the Samopomich party's 26 lawmakers therefore leaves the alliance of Yatseniuk's party and the President's faction without a majority in parliament.