“His killing is an unacceptable attack on journalism, a profession that embodies the right of freedom of expression, which is indispensable to democracy,” lamented Irina Bokova, Director-General of the UN Educational, Scientific and Cultural Organization (UNESCO), in apress release issued earlier today.

“I call on the Mexican authorities to shed light on this crime and bring its perpetrators to justice.”

Moisés Sánchez Cerezo's body was discovered on 24 January, three weeks after he was abducted from his home by armed men who also confiscated his computer, camera and mobile phone.

As owner and editor of the weekly magazine, La Unión, Sánchez Cerezo regularly denounced problems of insecurity in the Mexican city of Medellin de Bravo, in the state of Veracruz.

Sánchez Cerezo's death comes amid a deteriorating security situation across Mexico in which numerous journalists and activists have lost their lives.

In a report released in March 2014, UNESCO stressed the growing trend of media workers being killed around the world. Focusing on the latest challenges affecting media development and freedom of expression, the report, called “World Trends in Freedom of Expression and Media Development,” noted that more than 430 journalists were killed between 2007 and 2012.

In a separate press release , Bokova also condemned the murder of Japanese freelance journalist, Kenji Goto, at the hands of the Islamic State of Iraq and the Levant (ISIL).

Goto was a seasoned war journalist who had previously worked in Afghanistan and Syria and remained “dedicated to exposing the suffering that conflict imposes on citizens,” the Director-General said.

He had travelled to Syria in late October and went missing shortly thereafter. On 31 January, ISIL released a video of his beheading.

“His cold-blooded murder was a vile act that I condemn in the strongest possible terms,” Bokova continued.

“I urge the authorities to do everything within their power to bring the perpetrators of this crime to justice. I also call on journalists and all media workers covering events in Iraq and Syria, and in other conflict zones, to take all necessary measures for enhancing their safety.”

UN Photo/Devra Berkowitz