Minor South Korean presidential candidate Ahn Cheol-soo halted his campaign and threw his support to the main conservative candidate Yoon Seok-youl, a move that could increase the chances of the right-leaning bloc winning next week’s election.

The race for the March 9 election has been neck-and-neck between Yoon of the People Power Party and progressive Lee Jae-myung of the ruling Democratic Party. Final polls published Wednesday showed them both in the 40% range, with Yoon slightly ahead and conservative Ahn at about 10%.

"We’ve decided to come together for the change of presidential power,” Ahn said Thursday at a news conference alongside Yoon. "We are now in the same boat.”