The United Kingdom thwarted at least seven terror attacks in the country over the last six months, British Prime Minister David Cameron said on Monday, days after the deadly Paris attacks by Isis. 

"We should be clear that those attacks could have happened in Belgium, it could have happened in Denmark, it could have happened in Sweden, it could happen here," Cameron, who is in Turkey for the G20 Summit, told BBC's Radio 4. 

Cameron said that the attacks foiled on British soil were smaller in scale compared to the Paris attacks on Friday, which left nearly 130 people dead. 

Following the attack, French Prime Minister Manuel Valls said that similar attacks were being planned not only in France but in the rest of Europe.

"We have been aware of cells operating in Syria radicalising people from these countries and sending people back to carry out attacks. Our security and intelligence services have stopped something like seven attacks in the last six months,," Cameron said. 

"What Paris (attacks) prove that they will try and kill as many people as possible," he added.

He said that he will try to "build the case" for UK to bomb Isis in Syria. 

French warplanes hit Isis targets in Syria on Monday after teh terror group claimed responsbility for the Paris attacks and warned of more such strikes in France. 

Earlier this year, a British newspaper had reported that the Islamic State had allegedly planned a terror attack to strike the UK Armed Forces Day parade in London, but the plan was foiled after Isis unwittingly revealed the plan to the newspaper.