Six fixed penalty notices were given out on Saturday (27 February) for breaching Covid restrictions.
Lancashire police were called to a property on the outskirts of Grimsargh at around 8pm after receiving reports of a party.
Several people from different households were found at the address in Preston Road and six were given fines.
Read more: Covid-19 cases in Preston and South Ribble, ranked lowest to highest by area
A spokesperson for Lancashire police said: “We have always taken a proportionate approach to issuing fixed penalty notices and would prefer to educate, explain and engage before using enforcement as a last resort. However, when officers come across blatant breaches of the rules they will not hesitate to take a much firmer approach.
“We continue to remind people that we are in a global pandemic and if we want life to return to normal we must all do our bit to stop the spread of the virus.
“As ever, we thank those who are sticking to the rules and are playing their part in keeping everybody safe.”
Preston was named as a place in the top ten highest coronavirus case rate in the UK last week and has remained within the top infection rates.
Preston’s current case rate per 100,000 over the last seven days is 178.9, a decrease from previous data.
England’s rate is 91.2, also a decrease.
Lockdown measures are due to start being eased from Monday 8 March with children going back to school.
See the latest coronavirus cases and information near you
Read more: See the latest Preston news and headlines