Cleveland Mayor Frank Jackson and Police Chief Calvin Williams announced plans for a community tip line to help police on unsolved violent crimes.

Jackson and Williams said a tip line for violent crimes and homicides will become active Sunday. Detectives will man those lines from 1-5 p.m. All tips will be anonymous.

Williams said the city has seen 70 homicides this year. Police currently have a 47 percent solve rate on homicides.

"That is not where we want to be as a city," Williams said.

Williams said a study was conducted last year to review the city's homicide unit. The city is in the process of reviewing recommendations based on the study's findings in order to amend and improve the way homicide cases are solved.

"I think our community just needs to know that we're out there for them," Williams said.

Numbers for the tip lines were not announced. Williams said the city hopes to release those numbers later today.