Just coming in, we have recieved intel that in fact, District 17 has been attacked. Whether or not it was District 1's alleged attack we are unsure of, but we can confirm that despite the large amount of casualities - there are some survivors.

Footage shows District 1 Hero, Supreme, battling against to what it seems like, the notorious villians Steel and Sledge, before encountering a large explosion, killing hundreds. 

We are unsure of what caused the explosion but from what we can assume, it seems like Supreme tried to stop the District 1 attack but unfortunately failed. More news on this subject later.