LEECH LAKE INDIAN RESERVATION  (AP) - Authorities in some tribal communities say they've noticed a drop in gang activity since January's sweeping take-down of two dozen suspected Native Mob gang members.

Tribal members are hoping the arrests will weaken the gang.

Dave Ulberg is a Leech Lake tribal narcotics investigator. He says since the federal indictment in January, the number of search warrants for suspected crack houses on the reservation is down about 70 percent.

He also says that since the arrests, more people on reservation have been sharing information with police without fear of retaliation.

There are at least 10 unsolved homicides in Minnesota that may be linked to the Native Mob. Those and other crimes are still being investigated.

(Copyright 2012 by The Associated Press.  All Rights Reserved)