Coca-Cola announced today that it is putting more hybrid electric delivery trucks on the streets of the city.

There are already two hybrid trucks on the road and another three are expected by the end of the year.

The vehicles run out of the bottler's Bronx Service Center. They are designed to eliminate emissions by switching from gas to electric power when traveling at speeds below 30 miles per hour.

Mayor Michael Bloomberg says the more that is being done to make air cleaner in the city, the better.

"When this truck is stuck in traffic or stopped at a stop light, it won't release any exhaust or soot into the air,” he said.

"It is more fuel efficient, uses about one third less fuel,” said Coca-Cola Enterprises CEO John Brock.

The five hybrid trucks in the Bronx will make up the Coca Cola's largest hybrid electric fleet in any U.S. city. Overall, 90 trucks currently run out of the Bronx center.