Members of the New York Police Department paid tribute to officer Didarul Islam, one of the people killed in Monday's Manhattan shooting. Islam died Monday when a gunman opened fire inside a New York City office building.

Politicians, relatives and members of the New York City Police Department are gathered at the funeral for the officer who was one of four people killed in the Midtown Manhattan mass shooting. Didarul Islam,

New York police honor fallen officer Didarul Islam with funeral services after he was killed by a gunman in a Midtown office building on Monday evening.

New York City officials said they are investigating a cluster of Legionnaires' disease that has caused one death and nearly two dozen illnesses.

Legionnaires' disease can be fatal, especially for older adults, smokers and those with weakened immune systems.

At least 22 people have fallen ill, including one person who has died, from Legionnaires’ disease in New York City over the last two weeks, according to the city’s health department. City health officials believe that the people most likely became ill after breathing in bacteria sprayed from a cooling tower in central Harlem.