Khalil Mack had a sack and fumble recovery, Eddie Jackson returned an interception for a touchdown and Chicago tightened its grip on the division with a 25-20 victory over the second-place Minnesota Vikings on Sunday night.

Mack and Jackson led a dominant effort by the defense. And Chicago (7-3) took a big step toward its first division championship since 2010. The Bears won their fourth in a row, their longest streak since a six-game run in 2012.

Kirk Cousins was consistently under pressure and finished 30 of 46 for 262 yards. He threw two touchdowns in the final 4:51 and got intercepted two times.

Stefon Diggs had 13 catches for 126 yards and a TD. But the Vikings(5-4-1) came up short after winning four of five.