JERUSALEM — Israel’s hard-line foreign minister warned Palestinians against plans to unilaterally declare independence next year, saying in an interview Tuesday that such a move could prompt Israel to annex parts of the West Bank and annul past peace agreements.

Avigdor Lieberman also made harsh comments about Turkey, Israel’s increasingly alienated ally, saying the Turkish prime minister was coming to resemble Libyan ruler Moammar Gadhafi.

Lieberman, who heads an ultranationalist party, has become known for a belligerent tone that has earned him critics abroad and inside Israel.

His remarks Tuesday on Palestinian independence took aim at a Palestinian policy that has emerged as U.S. attempts to restart peace talks have stalled.

Palestinian Prime Minister Salam Fayyad, whose Western-backed administration has a limited governing role in the Israeli-controlled West Bank, announced plans to unilaterally declare a Palestinian state, possibly as early as 2011 — even without a peace deal.

Lieberman warned that if Palestinians declared independence, Israel could revoke 1990s peace agreements or annex parts of the West Bank.

“Any unilateral decision will release us from all of our commitments and will allow us also to make unilateral decisions,” Lieberman was quoted as saying by the Ynet news Web site. “For example, imposing Israeli sovereignty on certain areas, cutting off all kinds of ties and transfers of money and a string of benefits and agreements put into place since the (peace) accords.”