Paris: French Prime Minister has admitted the failure of security forces and intelligence following three days unrest led to killing of 20 people.

According to international media French Prime Minister has confessed the lapses and failings of intelligence agencies over the three days violence in the country which killed at least 20 people disseminate horror and panic in the citizens of State.

French Prime Minister Manuel Valls acknowledged that any of intelligence agencies unable to provide any threats for imminent terror activities in Paris which proved that authorities have failed to stock any intelligence about terrorism.

The PM stated while talking to local channel that 17 of people have been killed in different attacks carried out by suspected militants while police and security forces unable to cope the terrorism in the country.

On the other hand, Al-Qaeda militant group has threatened Britain including France; security has been beefed up in the United Kingdom while British Prime Minister David Cameron instructed authorities to use additional options to prevent terrorism.

UK intelligence warned the authorities that Al-Qaeda militants can target transport system of State, security measures have been refine and all vehicles have been allowed to enter after comprehensive checking to avoid any possible terror attack.