New Delhi, Nov. 15 -- Robot dogs fitted with rifles appeared in footage released by Salvadoran President Nayib Bukele of an operation that he said secured Sylvio Cator Stadium in Haiti's capital, Port-au-Prince.

The video showed the four-legged machines moving along a hallway and climbing stairs with weapons mounted above their bodies. Their precise contribution to the operation remains unclear, according to Fox News' report on the stadium operation.

Bukele says joint forces secured stadium

Bukele said the mission involved the Haitian National Police, the Haitian Armed Forces, a task force and Salvadoran special forces under a bilateral agreement between the two governments.

In his account, the forces took control of the stadium and s...