Ukraine again succeeded in shutting down Moscow airports as it launched drones at the Russian capital. Three airports in the Moscow area – Domodedovo, Vnukovo and Zhukovsky – suspended operations temporarily on Thursday, Russia’s aviation authority Rosaviatsiya said. Some closures were continuing on Friday morning, reports said. The authority also said it had to temporarily halt flights at Kaluga airport, about 200km (125 miles) south-west of Moscow.

A senior Ukrainian security officer was shot dead in a residential parking lot in Kyiv on Thursday before the killer fled on foot. Police said they were working to identify and detain the shooter. The agent was a colonel in the Security Service of Ukraine (SBU), an official told Reuters. The SBU, a sprawling domestic spy agency with thousands of staff, said it had opened a criminal investigation into the murder of one of its employees in Kyiv’s southern Holosiivskyi district.

Volodymyr Zelenskyy said on Thursday that he would replace Ukraine’s ambassador to the US and was considering his defence minister, Rustem Umerov, for the post. Ukraine’s president said the main task would be to strengthen Ukraine in its defence efforts in the war against Russia and Umerov was a key figure to do that.

Marco Rubio, Trump’s secretary of state, meanwhile said there were no signs that the Kremlin was willing to compromise. Speaking after talks with Russia’s foreign minister, Sergei Lavrov, in Kuala Lumpur, Rubio said Donald Trump was disappointed with Moscow’s hardline stance, and sanctions on Russia were a real option, with the Trump administration engaging with the Senate and Congress over the sanctions bill.

A Russian military drone flew into Lithuania and crashed, Lithuanian authorities confirmed on Thursday. Dovilė Šakalienė, the Balkan country’s defence minister, said it was a Gerbera decoy drone intended to imitate the armed Shahed drones. Russia uses Gerberas to tie up Ukrainian air defences during its Shahed attacks. The Lithuania incident is the latest apparent incursion by Russian aircraft into Nato airspace during the war.

Russian authorities have confiscated western assets worth about $50bn over the past three years, research showed on Wednesday. While that includes property of companies like beer maker Carlsberg, the west is holding an estimated $355bn in frozen Russian financial assets that several of Kyiv’s allies say could be spent on Ukraine’s defence and reconstruction. In February the UK foreign secretary, David Lammy, told parliament that he believed Europe “should move from freezing assets to seizing assets” from Russia for Ukraine’s benefit.

Countries prepared to provide troops for a post-ceasefire force in Ukraine have agreed to set up a headquarters in Paris. A US delegation was present for the first time at a meeting of the group on Thursday that took place on the sidelines of the fourth annual conference on Ukraine’s recovery held in Rome. Emmanuel Macron, the French president, and the British PM, Keir Starmer, joined the meeting via videoconference.