Four people shot in Washington DC

OK, so we are bringing you another breaking news story now coming out of the United States. We understand, according to police, that four people have been shot in the Logan Circle neighbourhood of Washington, D.C. As you can see there, a lot of cars, a lot of police cars, ambulances are flashing, so police are clearly at the scene. This is an active shooting. The location that we understand is the area of the 15th and P Street Northwest. Police are warning people in the area to stay inside. Let's go straight to our correspondent, John Holman. As you were saying, four people shot so far in the report and that the suspect... Might still be at large. There's definitely helicopters flying all ahead. I walked past, there must be at least dozens of police cars that had gone to the vicinity. Also people putting on tactical gear with long arms and putting on their helmets in the boots of cars and heading towards the zone as well. I saw people not just from the police force, but also from the FBI, the police from the Secret Service that were heading towards there. So a really big... Operation being mounted to try and get to the first of the heavy set, but he's white and he's wearing a grey shirt.