MANILA, Philippines?(UPDATE) If President-elect Benigno Aquino III is serious about his campaign against corruption, he should work to end the culture of impunity that promotes the killing of members of media, an international watchdog said Tuesday.

In a statement posted on its website, the International Press Institute said the campaign against corruption requires a vibrant and active media. The statement was made after another media member was killed on Saturday.

?This continued targeting of journalists is linked to the impunity that the killers enjoy in the country. If President-elect Benigno Aquino wishes to stamp out corruption as he promised during his election, the Philippines needs a fully functioning media, a media that is not constantly under threat of attack,? said IPI Director David Dadge.

Dadge also said his organization is urging Aquino and his new government ?to tackle the issue of impunity in the murder of these journalists and those slain in recent years and prosecute those responsible.?

Three members of media have been killed in the span of just five days.

Nestor Bedolido, 50, was shot at close range by two men on a motorcycle in Digos City, Davao del Sur on Saturday.

Reports said that Bedolido was buying cigarettes from a street vendor when he was shot six times. He was pronounced dead on arrival at a local hospital.

Bedolido was a reporter for Kastigador, a weekly local newspaper and later acted as its editorial consultant.

Police said the killing may have been related to Bedolido?s work. But his son Marxlen Bedolido, said he believed local politicians might be behind his father?s death.

On Wednesday, two gunmen on a motorcycle shot and killed journalist Joselito Agustin, a reporter and anchorman for the Filipino radio station DZJC Aksyon Radyo, on his way home in Ilocos Norte.

Police filed murder charges against newly-elected Bacarra Vice Mayor Pacifico Velasco in relation to the incident.

On Monday, Desidario Camangyan of Sunshine FM Radio was shot dead while hosting a village singing competition in Manay, Davao Oriental.

The IPI had ranked the Philippines as the deadliest country for journalists after the brutal killing of 32 journalists in Ampatuan town, Maguindanao on on Nov. 23, 2009.

The Arroyo government had been criticized heavily both locally and abroad for its failure to curb the attacks against members of media.

Local media groups have been urging Aquino, who ran under an anti-corruption platform, to take bold steps to stop media killings and to immediately apprehend and prosecute those responsible.