Below is an instruction that describes a task. Write a response that appropriately completes the request.

### Instruction:
identify whether following news is true or not

Input:
London Mayor says police presence to increase after metro explosion;LONDON (Reuters) - London Mayor Sadiq Khan said Londoners will see more police on the streets of the British capital after an explosion at a metro station, which officers said was a  terrorist incident.    They will see over the course of today and the next few days an enhanced police presence, not simply on the public transport network but also across London,  Khan told LBC Radio.  ;September 15, 2017

### Response:
True news

### End