NASHVILLE, Tenn. (AP) — Deadly overnight tornadoes delayed the start of Super Tuesday presidential primary voting in Nashville and another Tennessee county, spurring elections officials to redirect voters from some polling places to alternate locations.

Some polling sites in Nashville's Davidson County and Wilson County were moved, and sites across the two counties were opening an hour late but still closing at the same time, Secretary of State Tre Hargett announced. Gov Bill Lee said the state has deployed generators to polling stations that have reported that they don't have power.

The twisters shredded at least 40 buildings and killed at least nine people. One of them caused severe damage across downtown Nashville.

"Of course we want people to exercise caution in areas like downtown Nashville where there's damage in the streets and that sort of thing," Lee said at a news conference Tuesday. “But we also want folks to exercise their rights and get out there and vote. It's a very important day for that.”

Nashville Mayor John Cooper said alternate sites were arranged for 15 polling places out of the 169 precincts in Nashville's combined city-county area.

"The likelihood of you being able to vote regularly at your home precinct is very great," Cooper said at Tuesday's news conference.

The disaster has complicated voting in a presidential race reshaped by Joe Biden's blowout South Carolina win and exits by Amy Klobuchar and Pete Buttigieg. Democratic presidential campaigns have continued to make their Super Tuesday case in Tennessee through TV ads and appearances.

The former vice president deployed his wife, Jill Biden, to Tennessee on Sunday for a meet-and-greet in Memphis and a fundraiser in Nashville, then she toured a Nashville middle school Monday morning.

Sen. Bernie Sanders' wife, Jane Sanders, spent Wednesday making multiple stops in Nashville. Sen. Elizabeth Warren sent actress Ashley Judd to make stops for her in Nashville on Monday and Election Day.

And billionaire Mike Bloomberg made three stops Friday in Tennessee, speaking in Memphis, Clarksville and Johnson City. The former New York City mayor has made four trips to Tennessee as a candidate — more than any of his rivals — and has hired the most staffers throughout the state. His multimillion-dollar ad campaign in Tennessee has been the easiest to spot on local TV airwaves.

Buttigieg, the former South Bend, Indiana, mayor, held a rally Saturday in Nashville, only to see a dismal outcome in South Carolina and drop out of the presidential race Sunday. Klobuchar, the Minnesota senator, held a Nashville event Friday, then left the contest Monday.

Tennessee's 73 delegates also could prove vital for candidates needing to show momentum in the rapidly thinning race. Just seven other states will have more delegates than Tennessee on Super Tuesday.

In a state where a Republican holds every major elected office, including seven of the nine congressional seats, the Democratic primary voting base has a history of being more moderate than that of other states.

Even though Buttigieg, Klobuchar and Tom Steyer recently dropped out of contention, they'll still see their share of votes: More than 169,400 Democratic primary votes in Tennessee were already cast ahead of Tuesday through early and absentee ballots. Early voting began Feb. 12.