Authorities say the spotted a van on community drive between I-69 and Loop 494 in Porter.
During a search of the vehicles, police say they found 10 kilos of cocaine in tightly bundled packages. They say the drugs are worth close to $400,000 in street value.
Police arrested five people on drug charges.
They are now in the Montgomery County Jail, each being held on one $1 million bond.
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