CHICAGO — The city of Chicago has reached a four-year agreement with the union representing police sergeants.

The Chicago Sun-Times reports (http://bit.ly/WYYQ5C) the deal calls for a 1 percent increase for three years in pension fund contributions by the police department's 1,125 sergeants. Under the agreement, by January 2015 each sergeant will pay 12 percent of the pension cost.

The agreement includes a 9 percent pay raise spread over four years. It maintains the $1,800-a-year uniform allowance and $3,220 in annual duty availability pay.