KANSAS CITY, Mo. -- A convenience store clerk at the Front Street Valero gas station went after three robbers just after a holdup early Wednesday morning, KMBC's Brenda Washington reported.

A 35-year-old night clerk was on duty.

"They jumped over the counter, pointed a gun, took money and one grabbed some soda pop," manager Albert Jiwan said.

KMBC's Brenda Washington reported that the robbers also forced the clerk to open a second cash register.

"But he just could not open it in time," Jiwan said.

After the robbers took off, the clerk grabbed a gun from under the counter and went outside to try to get the license plate number on the robbers' car.

"They saw him coming out, shot at him. He fired back," Jiwan said.

The clerk was not hurt. He told the police he was able to shoot out a rear passenger window on the car.

No arrests have been made. But Jiwan hopes images from the surveillance tape will help catch them.

"The sooner we catch them, the better for the community," Jiwan said.

Anyone with information on the robbery is asked to call the TIPS Hotline at 816-474-TIPS.