MANILA - The cases over supposed extrajudicial killings (EJKs) filed by a leftist group before the United Nations only serve "propaganda purposes," Malacañang said Sunday.

Karapatan alliance, in separate letters to UN special rapporteurs Agnes Callamard and Michel Forst, reported Saturday 25 cases of EJKs allegedly arising from the government's counterinsurgency drive.

It was the group's second allegation of human rights violations after it reported in April 47 cases of alleged EJKs.

"It’s useless to go to go the UN without filing cases before the fiscal’s office. Filing directly with the UN is only for propaganda purposes because there are institutions in the Philippines that could address it," Presidential Spokesperson Harry Roque said in a statement.

Roque encouraged Karapatan to file the case with the fiscal’s office or seek intervention from the Supreme Court.

Malacañang has denied encouraging state-sponsored killings, saying "our principled position [is] that disputes should be settled in a peaceful manner."

Duterte has also hurled tirades against the UN after Callamard warned the Philippines of alleged human rights violations under the war on drugs.

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Callamard has expressed interest to visit the Philippines and investigate the killings, but the government has set conditions for her visit.