Britain is "working closely" with the French authorities through security and intelligence agencies to investigate the Paris attacks that killed at least 129 people, Downing Street announced Sunday.

British Home Secretary Theresa May chaired a government emergency meeting Sunday to discuss Britain's response following the terrorist attacks in Paris.

"As the situation continues to unfold, we are working closely with the French authorities, through our security and intelligence agencies, police and Border Force and our Embassy in Paris," a Downing Street spokesperson said in a statement after the meeting.

The Foreign and Commonwealth Office (FCO) sent a rapid response team to Paris after the attacks and British consular team in Paris were providing family support.

British officials discussed the collaboration between France and Britain to "reinforce borders while ensuring there are minimal delays to travelers," according to the spokesperson.

The meeting also discussed the operational response measures being put in place by the police, such as additional patrols and policing at the border.

British ministers also talked about the proposed minute's silence to be observed at 11.00 a.m. local time on Monday across Europe, said the spokesperson.

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