A witness has told a Mexican court he was threatened he would “end up like the gringos” if he told anyone about what he saw when two Australians were killed while on a surf trip two years ago.

Three men face court over the 2024 killings of the Robinson brothers and their American friend in Baja California.

The suspected murderers of two Australian surfers and an American at a Mexican surfing hotspot went on trial Monday, two years after their killings in a suspected robbery.