The Palestinian Foreign Ministry condemned on Monday Guatemala for deciding to move its embassy to Jerusalem weeks after the United States recognized the city as the capital of Israel.
"It's a shameful and illegal act that goes totally against the wishes of church leaders in Jerusalem" and violates a non-binding UN General Assembly resolution condemning the US move, the ministry said in a statement.
"The state of Palestine considers this as a flagrant act of hostility against the inalienable rights of the Palestinian people and international law," it said.
"The state of Palestine will act with regional and international partners to oppose this illegal decision."
In an official Facebook post on Sunday, Guatemalan President Jimmy Morales said he had chosen to relocate the embassy from Tel Aviv after talking to Israeli Prime Minister Benjamin Netanyahu.
Guatemala's announcement came after two-thirds of UN member states approved a motion rejecting US President Donald Trump's controversial decision to recognize Jerusalem as Israel's capital.
Guatemala was among only eight countries to join the United States on Thursday in voting against the resolution.
Israeli Prime Minister Benjamin Netanyahu stated during a cabinet session on Sunday that several European countries would likely move their embassies to Jerusalem.
Trump's announcement on December 6 sparked anger in the Palestinian territories and across the Muslim world.
Israel seized the eastern part of Jerusalem in the 1967 Six Day War and later annexed it in a move not recognized by the international community.
Israelis see the whole of the city as their undivided capital while the Palestinians view the east as the capital of their future state.