MEXICO CITY, Nov 21 (Openly) - Following a wave of murders, LGBT+ rights activists in El Salvador on Thursday backed a United Nations appeal for authorities to step up action to protect gay and trans people. At least four LGBT+ people have been killed in the impoverished and violence-plagued Central American country in the last month, gay and trans rights groups said, with the latest victim, Oscar Canenguez, a gay man, found dead on Sunday.

In a statement, the U.N. called on Salvadorean authorities "to investigate these crimes so that they might punish the perpetrators ... and take urgent measures to prevent further acts of violence ... against the LGBTI community."

The Salvadorean prosecutor's office did not immediately respond to a request for comment. After the murder of a trans woman in October, President Nayib Bukele said that authorities were working to end anti-LGBT+ stigma.

LGBT+ people face persistent discrimination and abuse in El Salvador, where local gang violence and entrenched social prejudices can be a deadly mix. Gay marriage is illegal and trans people cannot change their gender on official documents.

The country's influential Catholic Church and most evangelical groups publicly condemn gay marriage and sex.

According to COMCAVIS Trans, a local advocacy group, some 600 LGBT+ people have been murdered in El Salvador since 1993. Campaigners said inaction on LGBT+ rights by the government of Bukele, who took office in June, was partly to blame for the rising violence. "The new authorities don't have justice (or) the prosecution of these cases as a priority," said Roberto Zapata, secretary general of local advocacy group AMATE El Salvador.