Two workers were killed at Kennedy International Airport on Monday when they were buried under construction rubble inside a trench, officials said.

The police received a report that the two workers were trapped under the debris shortly after 11 a.m., according to officials with the Port Authority of New York and New Jersey, which operates the airport.

Emergency services workers from the Fire Department joined the Port Authority police in responding to the scene and in removing the workers from the trench, officials said. Both construction workers were declared dead at the scene, officials said.

The workers were not publicly identified, and few other details were immediately available about what they were doing when they became buried.

The Port Authority said in a statement that it had halted all construction at the airport, was conducting an investigation and would be cooperating in any inquiries undertaken by other agencies.