Prime Minister's Office, 10 Downing Street
A Downing Street spokesperson said:
The Prime Minister is deeply saddened by the tragic loss of life in the Grenfell Tower and is being kept constantly updated on the situation.
She has asked for a cross-government meeting at the Civil Contingencies Secretariat to take place at 4pm to co-ordinate the response and ensure the government is ready to assist the emergency services and local authorities as necessary.
The Prime Ministers thoughts are with all of those affected by this terrible incident and the emergency services, who are working tirelessly in very difficult circumstances.