Tensions escalate as Ukraine and Russia exchange missile attacks.

A US-made Patriot missile defense system used by Ukrainian forces has likely suffered some damage from a Russian air attack but does not appear to have been destroyed. The Patriot system is one of an array of sophisticated air defense units supplied by the West to help Ukraine repel a Russian campaign of air attacks. Ukrainian forces claimed success in shooting down 18 missiles, including six Kinzhals, which Russia had fired at targets in Kyiv.