Ukraine announced on June 13 that it's short-range Sapsan ballistic missile would go into mass production, a major development in Kyiv's ongoing efforts to domestically produce the weapons it needs to fight Russia's full-scale invasion.

It was the deadliest attack on the Ukrainian capital in almost a year, and came as Moscow has intensified air assaults on the city.

Volodymyr Zelenskyy was due to hold talks with Donald Trump - but the US president has announced he is unexpectedly returning to Washington because of tensions in the Middle East.