Green light in the sky

I was sitting at my home watching TV and a flying helicopter could be heard approaching my property and shook my house I immediately ran outside at 12:28 a.m. in the morning to see what was going on if it was like flight or something serious some sort of emergency and saw this helicopter over stretch of miles has it passed my house and made a complete circle and then I noticed it was chasing a green light as it streaked across the sky and disappeared and reappeared several miles further away the green light and the helicopter chased it off in the distance and then roughly 20 minutes later the helicopter reappeared near my home close enough for me to hear the helicopter and then I saw the green light reappear again and disappear as it seem like the helicopter was chasing it.