NYPD officer Jonathan Diller, 31, is being laid to rest Saturday after being fatally shot during a routine traffic stop in Queens on Monday.

Ahead of the emotional 10:30 a.m. service, flower arrangements were seen being carried into St. Rose of Lima Church. Former President Donald Trump and his wife, Melania, were among mourners who sent arrangements.

Bus loads of NYPD officers began to arrive as several cops stood at the church doors.

You can help Officer Jonathan Diller’s 1-year-old son via the Silver Shield Foundation, which will help fund his future education. Diller, 31, was shot and killed during a traffic stop in Queens, leaving behind his wife, Stephanie, and baby Ryan.

The Silver Shield Foundation was launched in 1982 by late New York Yankees owner George Steinbrenner for the families of NYPD officers and FDNY firefighters who lose their lives in the line of duty.

You can make a contribution at silvershieldfoundation.org/donate or send it to: Silver Shield Foundation, 870 UN Plaza, 1st Floor, New York, NY 10017.

Follow the Post’s live updates from the funeral of NYPD officer Jonathan Diller: