(CBS) — President Donald Trump tweeted again about Chicago gun violence as the city hit a grim benchmark.

“Seven people shot and killed yesterday in Chicago,” Trump said on his Twitter page. “What is going on there — totally out of control. Chicago needs help!”

The tweet comes in the wake of reports that Chicago saw its deadliest day of the year, so far, with seven homicides across the city on Wednesday.

Trump recently threatened to “send in the Feds” if Chicago couldn’t fix the “carnage.

Chicago city officials have offered measured responses to Trump’s criticisms, saying additional federal resources would be welcome.

“We’ve made requests to the White House and the Justice Department for them to support our work — from increasing federal gun prosecution to more FBI, DEA and ATF agents to more funding for mentoring, job training and more. We are still waiting for the administration’s response to our request,” Chicago Police Supt. Eddie Johnson said in a prepared statement Thursday evening.

Trump, as a Republican presidential candidate, continuously made Chicago the butt of remarks about urban violence and failed policies. Chicago, meantime, has rejected Trump Administration initiatives such as a crackdown on undocumented immigrants.

U.S. Sen. Tammy Duckworth, an Illinois Democrat, responded to Trump’s tweet, saying there are “root causes” to be addressed.