INDIANAPOLIS -- About 50 vehicles got flat tires after scrap metal was spilled on I-70 Tuesday morning.

Troopers say the metal fell out of the back of a semi near the ramp from I-70 westbound to I-465 northbound on the west side.

Metal fell off a semi trailer onto the ramp from I-70 w to I-465, semi has been located. Metal resulted in an estimated 50 flat tires — Sgt. John Perrine (@ISPIndianapolis) April 12, 2016

Authorities say the rear tailgate of the semi wasn't secured properly and opened while the semi was moving.

Troopers cited the driver, 54-year-old Jeffrey Patterson of Greencastle, for insecure/leaky load.

They say Patterson Trucking, the owner of the semi, is cooperating with the investigation.

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