(CNN) - Israel continued a blistering assault early Thursday against Gaza, targeting what it described as 100 terror sites in response to ongoing rocket attacks by Palestinian militants, a move that has raised fears of a wider regional conflict.

The countering Israeli and Palestinian attacks prompted the U.N. Security Council to call an emergency closed door session late Wednesday in an attempt to de-escalate the crisis.

CNN's Sara Sidner reports live from the area on Early Start this morning about the ongoing violence.

Check out Sidner's full article about the situation here.