Is it really possible for a cat to kill a hawk?

I was siting down looking at this stray cat that always comes in our yard and a huge hawk come out of nowhere and tried to grab it. The hawk was 2 times the cats size it was the biggest hawk ive ever seen and cat wasnt little neither. Anyway they tussled around for a minute and the cat walked away with it in his mouth. And it looked silly how much bigger the bird was. Anyway is this rare or can cats fight big birds.