By Alexander Cornwell, Parisa Hafezi and Jeff Mason TEL AVIV/DUBAI/WASHINGTON (Reuters) -Iranian missiles struck major Israeli cities on Monday while Israel's prime minister said his country was on its way to eliminating "threats" from nuclear and missile facilities in Iran and civilian casualties mounted on both sides.

In the central Israeli city of Petah Tikva, many people seem to be lining up to support the military operation against Iran — despite an Iranian missile hitting here days ago.

Video shows what appeared to be the moment an Israeli missile hit the Islamic Republic of Iran News Network's studio in Tehran.

The US military has helped shoot down Iranian missiles that were headed toward Israel, two American officials said on Friday, according to Reuters News Agency. We have more on Netanyahu's statement now.

Authorities in the northern Israeli port city of Haifa said an Iranian missile had hit a residential building.

Iran launched a wave of missiles just hours after Israel said it was striking missile sites in central Iran. Israel says it hit Quds Force command centers.