Location of sighting: Bolton, England
Source: http://www.mirror.co.uk/news/uk-news/bolton-ufo-sighting-family-gobsmacked-5388130
News states:
A family claim their barbecue was interrupted by four UFOs 'zooming across the sky' - quickly followed by a Ministry of Defence helicopter. Andrea Finney, from Bolton, Lancashire, was enjoying a pleasant outdoor family meal with her husband Nigel and their son when the mysterious event left them spooked. The 48-year-old, who works in property management, told Mirror Online: "There were four of them, and they zoomed across the sky. "You just had to be there to see it, it was the strangest thing I have ever seen in my life."They zoomed off after we spotted them, and the craziest thing was that they were then followed by a Ministry of Defence helicopter. "I was just gobsmacked." (More at source).
