Ukraine needs many more rocket launchers from west, says adviser

UK and US have so far promised a handful; official says with 60 they can stop Russians dead in their tracks'

• Russia-Ukraine war - latest updates

Ukraine needs 60 multiple rocket launchers - many more than the handful promised so far by the UK and US - to have a chance of defeating Russia, according to an aide to the country's presidency.

Oleksiy Arestovych, a military adviser to the president's chief of staff, told the Guardian that while he believed the rocket launchers were a gamechanger weapon", not enough had been committed to turn the tide in the war.