THE BRONX - U.S. Citizenship and Immigration Services held a citizenship ceremony for some youngsters today at the Bronx Zoo.

Holding American flags, 27 children from 22 different countries took their Oath of Allegiance.

The children, with ages ranging from 3 to 16 years old, became citizens through their parents.

Rep. Jose Serrano, the Bronx president and city council members welcomed the new citizens. Even President Barack Obama congratulated the children via video.

For the last five years, U.S. Citizenship and Immigration Services has teamed up with the Bronx Zoo to conduct the ceremonies.

For more on the citizenship ceremony, watch the clip to the left or click News 12 Extra on Optimum TV channel 612.