With his death, which happened one day after the apparent suicide of a 35-year-old off-duty officer in Yonkers, the department nearly doubled the average number of reported suicides among officers — more than four months before the year ends. The number of police suicides this year is the highest in at least a decade, underscoring the Police Department’s ongoing struggles to persuade officers that they should seek treatment if they are experiencing problems with mental health.

Donovan Richards, the chairman of the City Council committee with oversight of the police, lives a few blocks away and said he was driving in the Laurelton neighborhood when he saw police cars rushing through it. He followed them to the house and saw the officer’s 11-year-old daughter run outside screaming. Medics brought out her father soon after.

“This hits close to home,” he said. “It’s tragic for the family, for the children, for the community. It shows that the city as a whole needs to do more to offer services to those who are sworn to protect and serve us. How are we taking care of them as a city?”

On Tuesday, the police in Yonkers said they responded at 3 a.m. to a report of a suicide in a home on Shoreview Drive and found a New York City officer dead from a self-inflicted wound.

The officer, Johnny Rios, worked in the 50th Precinct and had been temporarily assigned to a detail at Yankee Stadium. He had been with the department for seven years and had no blemishes on his record, the police said.