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DES MOINES, IOWA (AP) -- Cleanup is under way after spring thunderstorms hit Iowa for a second day with strong winds, hail and heavy rain.

The National Weather Service issued several tornado warnings on Tuesday, but no official tornadoes were reported.

In eastern Iowa, winds gusting around 75 mph blew over semitrailers, ripped sheet metal off roofs and toppled barns and power poles.

Near Newton, a camper and three semis were blown off Interstate 80. No serious injuries were reported.

Winds also blew a semitrailer off a highway near Independence, causing another truck, a van and a car to end up in a ditch.

Tennis ball-sized hail pelted the Waterloo area.

A statewide tornado drill will be held on Wednesday as part of severe weather awareness week in Iowa.

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