A municipal government staffer displays vests for cyclists at the Constitution Square during the World Car-Free Day, in downtown Mexico City, capital of Mexico, on Sept. 22, 2016. (XinhuaStr)

MEXICO CITY, Sept. 22 (Xinhua) -- Mexico City, known for its love affair with cars, marked World Carfree Day on Thursday by reclaiming a small part of the capital from the millions of vehicles that circulate daily.

The city banned automobiles from streets around the central plaza, called the Zocalo, from 6:30 a.m. until 10:30 p.m., to the delight of pedestrians and bicycle riders.

Mexico City Mayor Miguel Angel Mancera joined the effort to go carless, and "arrived at City Hall on foot," a local daily reported, alongside a photo of the mayor striding along a central avenue in the historic downtown area, dressed in a suit and tie, portfolio in hand.

Other officials were photographed or posted selfies of themselves riding public transportation or taking bikes to work, including federal deputies and city Police Chief Hiram Almeida, seen riding in a crowded subway car.

Bicycle users are seen during an event to mark the World Car Free Day at the Constitution Square, in downtown Mexico City, capital of Mexico, on Sept. 22, 2016. (Xinhua/Str)

To encourage bicycling, and reduce fatalities among bikers, the city handed out bike safety vests and reflectors at several major intersections.

Mexico City launched a bicycle-sharing program several years ago, and while the number of users has grown, motorists seem reluctant to share the streets with them, or with pedestrians for that matter.

Mexico is among the world's top 10 countries with the highest number of road fatalities, according to a 2013 study.

The city, home to 4.7 million vehicles, is also plagued by high pollution levels, despite a complex program in place that restricts cars from circulating every day of the week.