None of the shootings was fatal, according to a spokeswoman for the Mercer County Prosecutor's Office.
On Sunday night, four people were wounded by gunfire at the intersection of Stuyvesant and Hoffman avenues. Three people were injured in shootings at the same spot on Friday night, police said.
Another Sunday shooting hurt two people at Faircrest and Coolidge avenues, according to initial reports.
The city of Trenton has suffered 37 homicides this year, most of them involving shootings. That ties 2013 for the most murders in a year in Trenton. There were 16 homicides last year.
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