Polls shut in too-close-to-call Florida, Pennsylvania

Poll workers check the identification of Suzanne Grant in the tiny precinct of Smith Creek on November 6, 2012 in Sopchoppy, Florida. The swing state of Florida is a hotly contested battleground that offers 29 electoral votes. Recent polls show that President Barack Obama and Republican nominee former Massachusetts Gov. Mitt Romney remain in a virtual tie in the national polls. Mark Wallheiser/Getty Images/AFP

WASHINGTON – Polls closed Tuesday in 16 states including the populous states of Pennsylvania and Florida, where networks said the race between President Barack Obama and Mitt Romney was too close to call.

Florida, with 29 electoral votes in a contest where 270 are needed to win, is the largest US state considered competitive for both candidates. Romney made a late campaign push in Pennsylvania, where polls have shown Obama to be ahead.

Polls also closed at 8:00 p.m. (0100 GMT) in battleground New Hampshire as well as Alabama, Connecticut, Delaware, Illinois, Maine, Maryland, Massachusetts, Mississippi, Missouri, New Jersey, Oklahoma, Rhode Island, Tennessee and Washington, DC.