The victim, Lucas Escalante, is still missing. Two of the officers are also accused of murdering his friend Lautaro Morello

The opposition presidential hopeful will need to distinguish his approach from internal rival and security hardliner, Patricia Bullrich

Countries including Argentina, Iran, Saudi Arabia, the UAE, Cuba, Democratic Republic of Congo, Comoros, Gabon, and Kazakhstan have all expressed interest in joining the bloc.

Nearly 40 people from El Salvador, Honduras, Guatemala and Nicaragua were included in a list of ‘corrupt and undemocratic actors’