Patriot missile systems delivered to Ukraine

Defence minister Oleksii Reznikov tweeted: “Today, our beautiful Ukrainian sky becomes more secure.”

American-made Patriot missile systems have been delivered to Ukraine (Mindaugas Kulbis/AP)

American-made Patriot missiles have arrived in Ukraine, according to the country’s defence minister.

The US agreed in October to supply the surface-to-air systems, which can target aircraft, cruise missiles and shorter-range ballistic missiles which Russia has used to bombard residential areas and the Ukrainian power grid.