The New York Police Department will not attend President Trump Donald John TrumpBubba Wallace to be driver of Michael Jordan, Denny Hamlin NASCAR team Graham: GOP will confirm Trump's Supreme Court nominee before the election Southwest Airlines, unions call for six-month extension of government aid MORE's major law enforcement and immigration policy speech in Long Island, N.Y. on Friday, where he plans to lay out the administration's plan to defeat the MS-13 gang.

“We have a lot to do, a lot of work to do in New York City,” said Police Commissioner James O’Neill on Friday.

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The commissioner's jurisdiction of New York does not extend to all of Long Island, where the meeting on gang violence is taking place. It is not clear if the NYPD would have been expected to attend the event.

New York is a sanctuary city, and Trump's speech is expected to take a hard line on the link between immigration enforcement and the rise of gang-related crime.

The speech will center on an appeal to legislators and an offer of support to law enforcement officials at every level, according to a senior administration official speaking on background Thursday.

Last week, law enforcement officials announced the arrest of 15 MS-13 members linked to four murders on Long Island in April. Authorities have linked 17 murders on Long Island to the gang since January 2016, The New York Times reported.

Trump will speak at Suffolk County Community College in Brentwood, where the county's police are centered and near where the street gang killed another four men in April.