Malaysian Troops Kill 31 Filipinos and Reject Talks By FLOYD WHALEY

Malaysian security forces killed 31 Filipino gunmen on the island of Borneo, officials said Thursday, and the government rejected calls by the United Nations for an end to the fighting.

At least 60 people, including eight Malaysian police officers, have been killed in the nearly month-long conflict over an attempt by followers of a Philippine-based sultan to assert a historic claim over parts of Borneo Island.

“The secretary-general is closely following the situation in Sabah, Malaysia,” said a statement from the United Nations released on Wednesday. “He urges an end to the violence and encourages dialogue among all the parties for a peaceful resolution of the situation.”

A spokesman for the Jamalul Kiram III, the leader of the group fighting in the Malaysian state of Sabah, said the sultanate was declaring a unilateral cease-fire in reaction to the call by the United Nations. He said an order was given for the group to take a “defensive position” and not to engage Malaysian troops.

“Malaysia, reciprocate the call for the cease-fire,” the spokesman, Abraham Idjirani, appealed at a Thursday afternoon news briefing.

The Malaysian defense minister, Ahmad Zahid, rejected the calls by the United Nations and the sultanate.

“A unilateral cease-fire is not accepted by Malaysia unless the militants surrender unconditionally,” he said in a statement, adding later: “Don’t believe the cease-fire offer by Jamalul Kiram. In the interest of Sabahans and all Malaysians, wipe out all the militants first.”

Malaysian Prime Minister Najib Razak told reporters on Thursday afternoon that Philippine President Benigno S. Aquino III had telephoned him after the United Nations statement to get his reaction.

“I informed President Aquino that they need to surrender unconditionally and their weapons have to be handed over to us,” he said during a visit to Lahad Datu, the area where much of the fighting has taken place.

Malaysian officials have called for the extradition to Malaysia of the group’s leader in Manila.

Mr. Aquino said Thursday that criminal charges are being prepared against the sultan by the country’s National Bureau of Investigation and he rejected calls for an immediate extradition. The Philippines and Malaysia do not have an extradition treaty but they have a mutual legal assistance agreement that facilitates the capture and repatriation of fugitives.

“Let our citizens here in the country face the charges that we will be proffering,” Mr. Aquino said. “Then we will talk about other developments after they have satisfied the requirements of our laws.”

The situation began in mid-February when about 200 people from the southern Philippines arrived in a remote coastal area of eastern Malaysia and announced that they were members of a royal army in service of the Sultanate of Sulu, which ruled the southern Philppines and parts of the Malaysian state of Sabah for centuries.