WASHINGTON, Pa. -- Police had to taser a pit bull twice before shooting it to end a vicious dog attack in Washington County.

The pit bull attacked another dog on Broad Street in the City of Washington.

"I had to get that dog off him. He's all tied up and I didn't want my dog dead."

Donald Jacobs and his wife Vicky said their one-year-old collie named Buddy was attacked by a neighbor's pit bull as they sat outside their house around 11 p.m. Saturday.

"I was hitting the pit bull on the head and everything else, trying to get him off," said Donald Jacobs.

Vicky Jacobs said, "I was petrified. I was horrified- all the words you can think. That was it. I was scared."

As Donald Jacobs tried to get the pit bull off Buddy, his wife called Washington police.

When Officer Matthew Karlowski arrived, he found Donald Jacobs tangled up in a leash still trying to pull the pit bull away.

Karlowski said he used his taser on the dog twice but the pit bull kept getting up. The officer then drew his gun and fired.

"Donald was clear along with his dog and I had to use one shot to put the dog down," said Karlowski.

An animal control officer removed the pit bull.

Karlowski said, "The dog was very vicious and the dog appeared to be on a frenzy."

Donald Jacobs plans to take Buddy to a veterinarian on Monday but the dog is expected to be OK.