Israel-Iran: How did latest conflict start and where could it lead?

The exchange of fire continues as Donald Trump reportedly considers joining Israel's campaign against Iran.

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There has been angry rhetoric from both sides, and US President Donald Trump is now considering whether to join Israel's strikes on Iran's nuclear sites.

It started when Israel attacked nuclear and military sites in Iran, and then Iran retaliated with aerial attacks targeting Israel.

More than 220 people have been killed in Israeli strikes so far, according to Iran's health ministry, while Israel says Iranian attacks have killed 24 people.

On Thursday 12 June, the Israel Defense Forces (IDF) told people in Tehran's District 18, which includes military buildings and residential neighbourhoods, to evacuate.