Reynosa

Five musicians who disappeared in the Mexican city of Reynosa, near the US border, were murdered by suspected drug cartel members, Mexican authorities have said.

In January, the US embassy in Mexico issued a level 4 travel advisory, the highest level, warning its citizens not to travel to several Mexican cities, including Reynosa.

"Heavily armed members of criminal groups often patrol areas of the state and operate with impunity particularly along the border region from Reynosa to Nuevo Laredo," the US state department said.

The five dropped out of sight Sunday evening in Reynosa.

Demonstrators staged rallies on a pair of border bridges and at other sites in Reynosa.