Angry residents took to social media to find out what had caused loud noises across St Albans on Monday night.
A number of people in Hertforshire tweeted about loud noises coming from Sopwell House Hotel at about 10.30pm on Monday night.
The luxury hotel replied to the barrage of tweets by saying: “It was a spectacular fireworks display as part of a wedding taking place here” but some twitter users were unimpressed.
Ben Rosenthal said: “At 10.30pm on a Monday night? Ridiculous. Woke up most of Hertfordshire up.”
The noises were even heard in Borehamwood where one resident reported "A lot people in Borehamwood felt like they being bombed.”