Houston police this morning are set to give details on the number of crimes committed in Houston last year.

The briefing comes as the city saw an 11% drop in homicides, which Houston police chief Art Acevedo said he believes was due to solving more attempted murders, and focusing on domestic violence prevention.

HPD's preliminary estimates put the number of murders in 2017 at 269 - down from 302 during the previous year. Using the U.S. Census Bureau's most recent population estimates, that would equate to about 11.7 murders for every 100,000 city residents. That's a significant upswing from the city's 25-year low of 9.2, set in 2011, according to data from the FBI's Uniform Crime Reporting program.

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Read more: Houston murders drop 11 percent in 2017

Houston's overall violent crime rate is, however, projected to increase by about 4 percent, according to an annual Brennan Center For Justice report that tracks crime in American cities through Dec. 19.

The Brennan Center estimated that Houston will experience a violent crime rate of 1,012 violent crimes per 100,000 the nation. In comparison, at its 1991 peak, Houston's violent crime rate was 1,600, according to the FBI's UCR database.

That same year, city police reported 36.5 murders for every 100,000 residents - more than triple the rate of this year.

Nationally, the Brennan Center estimated 2017 will likely have the second-lowest overall crime rate since 1990. Violent crime is down slightly since 2016, the report found, while the national murder rate plummeted 2.5 percent thanks to sharp declines reported in Chicago, New York City, Houston and Detroit.