MANILA—Several senators on Wednesday condemned the killing of 14-year-old Reynaldo de Guzman, whose body was found nearly three weeks since he disappeared with slain teen Carl Angelo Arnaiz.

In separate statements, the lawmakers called for an end to killings and demanded justice for recent deaths of teens in questionable circumstances.

Sen. Francis Pangilinan called on members of the Philippine National Police (PNP) to fulfill their responsibility to the Filipino people.

"Gampanan niyo ang tungkulin niyo sa bayan: serve and protect. Paglingkuran at protektahan. Hanapin ang may sala at papanagutin. Hindi luha ang sukatan ng malasakit sa kapwa o sa paggampan sa trabaho," said the opposition Liberal Party (LP) president.

It was an apparent reference to PNP chief Director General Ronald Dela Rosa's tearful defense of the force at Tuesday's Senate hearing on the killing of Arnaiz and 17-year-old Kian Loyd Delos Santos.

The two died in questionable police operations hours apart in Caloocan City in August. Forensic examinations found that both teens were killed while already on the ground.

"Kabilang siya (de Guzman) sa padami ng padaming bilang ng mga batang lalaking pinapatay. Mahigit 30 kabataan na ang nabibilang sa tinatawag na collateral damage. Tao sila. Mga bata. At krimen 'yun," he added.

Pangilinan noted that while the youth are killed in anti-drug operations, the shipment of illegal drugs into the country gets past the Bureau of Customs.

"Habang ang 14 anyos ay pinapatay, pinapalusot naman ang tone-toneladang shabu sa customs," he said, referring to the shipment of P6.4 billion worth of shabu that slipped through the Manila port in May.

"Marami kaming mga magulang na nababahala sa paglaganap ng krimeng pagpatay. Umaksyon naman kayo. Hindi solusyon ang araw-araw na patayan sa ilegal na droga," he added.

Pangilinan said only President Rodrigo Duterte could put an end to the anti-drug campaign.

"Tanging pag-anunsyo lamang ng Pangulo na itigil ang war on drugs ang siyang makatitigil sa patayan ng mga inosente at sa pang-aabuso at pagiging mamamatay-tao ng mga tiwaling PNP," he said.

Sen. Bam Aquino, also an LP member and part of the Senate minority, meanwhile called on the Duterte administration to suspend the war on drugs.

"We call on the PNP and the DOJ to ensure these murderers are caught, tried and imprisoned. We call on the administration to suspend Oplan Double Barrel and rethink this bloody drug war. And we call on all our countrymen to stand up against this culture of violence," he said.

Sen. Risa Hontiveros, also from the Senate minority, said there is no doubt that there's a pattern into the killings under the anti-drug campaign.

"Under President Duterte's bloody war on drugs, there is a pattern of killing young and poor people, particularly innocent minors. There is a policy to kill," she said.

"I urge the people to stand up and insist that the Duterte government end its abusive war on drugs that created this culture of killing and impunity in our country," she added.

Sen. Grace Poe meanwhile mourned the teens' deaths and said the spate of killings under the drug war must end.

"Namumuhi tayo na dalawang batang punung-puno ng pag-asa ang pinatay sa marahas na paraan," she said.

"Dapat gamitin ang buong puwersa ng sistema ng hustisya ng ating bansa para durugin ang mga salarin sa karumal-dumal na krimeng ito at matigil na ang walang habas na pagkitil ng buhay lalo na ng mga kabataan," she added.

Law enforcement agencies have initiated investigations into the teens' deaths.