Deaths have been reported in both Russia and Ukraine, with US-brokered talks set to continue on Sunday. Meanwhile, thousands were without power in the Ukrainian region of Chernihiv.
Norris, best known for his role in TV series Walker, Texas Ranger, died "at peace" on Thursday, his family says.
More than 230 people have been rescued so far, the authorities said on Friday.
US Central Command says intelligence support and missile radar used to monitor ship movements have also been destroyed.
The UN nuclear watchdog reported "no increase in off-site radiation level" at the Natanz nuclear plant in Iran and "no indication of damage" at the Israeli centre in Dimona.