Since the Colombian Peace Accord was signed in 2016, 128 ex-militants and their relatives have been reported killed by violent means, according to officials.

Colombian Senator Victoria Sandino is demanding the government give urgent attention to the murders of ex-combatants of the demobilized Marxist guerrilla group, Revolutionary Armed Forces of Colombia (FARC) "who have reached their limit," after the Monday murder of a seven-month-old boy and son of a former militant.

"To the father and mother of the child our message is of solidarity. But to the government, to the public prosecutors office, to the Colombian state, we demand that the facts are clarified first, that justice be done, but above all that they guarantee the lives of our comrades of the leaders and children," said Sandino, leader within the People's Alternative Revolutionary Force (FARC) political party.

"You cannot continue killing the hope of peace that was bet on by Colombians who want to turn the page of war," said the Congress member.

The FARC representative urged President Ivan Duque's government to act immediately to end the killings of ex-combatants.

Since the signing of the Final Peace Accord in 2016, at least 128 members of the FARC have been killed in Colombia, says the director of the state institution Agency for Reincorporation and Normalization, Andres Stapper.

"We have a report of 128 cases of ex-combatants that have been victimized and that at this moment are being confirmed by ... authorities," the official said, emphasizing that the deaths were violent.

The peace agreement, supported by the United Nations and crafted with the help of several Latin American organizations, led to the disarmament of around 7,000 combatants and the emergence of the FARC party.

Colombia's right-wing President ​Duque has been trying to dismantle the agreement and its peace institutions since his election campaign last year. Just last month the head of state announced his plans to amend six articles of the Statutory Law of the Special Jurisdiction for Peace (JEP), an integral part of accords meant to bring justice to the country’s 50 year internal conflict.

Samuel David Gonzalez Pushaina, the seven-month-old son of a former member of the now dissolved FARC Marxist movement was killed during an ambush on Monday in northern Colombia.

His father, Carlos Enrique Gonzalez, and mother Sandra Pushaina were also injured in the attack that took place in the municipality of Maicao in the department of La Guajira, Colombia. The family, who resides in Simon Trinidad, had gone to visit a relative in Maicao near the border with Venezuela.

Strapper added: "The Government rejects any threat or act that affects the life of any ex-combatant who is trying to reintegrate into society."