After last year's bombings Boston has put tight security measures in place for the 2014 marathon.

Backpacks and other bags are banned

Three people were killed and more than 260 wounded in the blasts

People filled the street near the finish line on the eve of the event

A near-record 36,000 runners are set to compete, many in a show of support for the city

About one million people are expected to line the route

Banners hang from a church near the finish line on the eve of the event