By Alexander Cornwell, Parisa Hafezi and Jeff MasonTEL AVIV/DUBAI/WASHINGTON (Reuters) - Israel and Iran kept up their attacks, killing and wounding civilians and raising concern among world leaders at a G7 meeting in Canada this week that the biggest battle between the two old enemies could lead to a broader regional conflict.

Several people were killed when Iran fired a barrage of projectiles at Israel in retaliation for Israel's surprise attack on its foe’s nuclear facilities and military leadership. Follow along for live updates,

Iran has told mediators Qatar and Oman that it is not open to negotiating a ceasefire while it is under Israeli attack, an official briefed on the communications told Reuters on Sunday, as the two foes launched fresh attacks and raised fears of a wider conflict.