Russia said dozens of drones were launched at Moscow on Tuesday in what it said were “enemy” attacks, using its preferred euphemism for Ukraine, hours ahead of critical talks between US and Ukrainian officials.

Russia said its air defenses downed 337 Ukrainian drones overnight, including dozens targeting Moscow, in what seems to be the largest attack on its territory of the three-year-long war.

The Ukrainian military said on Wednesday that Russia launched three missiles and 133 drones in an overnight attack. It said the air force shot down 98 drones. Another 20 drones did not reach their targets,

Ukraine launched a record number of drone attacks on Russia overnight, hours before top officials from the US and Ukraine are due to begin talks in Saudi Arabia to explore the potential for reaching a ceasefire.

Silicon Valley is tapping into the know-how of Ukraine’s war-trained drone makers.

The Ukrainian air force said it shot down the ballistic Iskander-M missile and 79 of the drones, while another 35 drones did not reach their targets likely due to electronic warfare countermeasures. In the southern region of Odesa,

Russian air defenses shot down over 300 Ukrainian drones over 10 Russian regions overnight, military officials said Tuesday, in what appeared to be the biggest Ukrainian drone attack on Russia in the three-year war.

Russia said it had downed more than 300 Ukrainian drones just hours before the first high-level talks between Washington and Kyiv since a tense Oval Office meeting.