Firstly thing in relation to the incident, as you've reported, at 8:20 this morning, at Parson's Green tube station there was an explosion on a tube train. Police have attended, we now assess that this was a detonation of an improvised explosive device. I should have seen the reports of 18 injuries and I understand most of those to be flash burns.
The scene currently remains cordoned off, and investigation continues. This investigation is supported by our colleagues from MI5, and bringing their intelligence expertise to bear on the case. Londoners particularly can expect to see an enhanced police presence particularly across transport systems, across the day.