Among those dismissed were senior aide Serhiy Shevyr, as well as three advisers and two representatives of the president.
Ukrainian President Volodymyr Zelensky fired a longtime aide and several advisers in an ongoing cabinet reshuffle on Saturday, while Russia launched new attacks overnight.
Zelensky dismissed his aide, Serhiy Shefir, from the position of first assistant, where he had worked since 2019.
The Ukrainian president also let go of three presidential advisors and representatives who oversee volunteer activities and soldiers' rights.
No explanation was immediately given for the latest changes in a widespread staff shake-up in recent months.
The decision included the dismissal of Oleksiy Danilov, who was Secretary of the National Security and Defense Council, and Valery Zalozny from the position of Commander of the Armed Forces on February 8.
Zalozny was appointed Ukraine's ambassador to the UK earlier this month.
Drones and missiles launched across Ukraine
The Ukrainian Air Force said on Saturday that Russia launched 12 Shahed drones overnight, nine of which were shot down, and fired four missiles at eastern Ukraine.
Ukraine's armed forces said in social media posts that Russia launched a barrage of 38 missiles, 75 airstrikes and 98 attacks from multiple rocket launchers in the past 24 hours.
Vadim Velashkin, the governor of the Ukrainian Donetsk region, said today, Saturday, that two people were killed and another was injured in Russian bombing of the partially occupied Donetsk region.
Ukrainian energy company Centernergo announced that the Zmiev Thermal Power Plant, one of the largest thermal power plants in the eastern Kharkiv region, was completely destroyed after Russian bombing last week.
Power outage schedules remain in place for about 120,000 people in the region, where 700,000 people lost power after the plant was hit on March 22.
Russia has escalated its attacks on Ukraine's energy infrastructure in recent days, causing severe damage in several regions.
Officials in the Poltava region said on Saturday that there were “several strikes” on an infrastructure facility, without specifying whether it was an energy facility.
Meanwhile, the toll from Friday's mass bombing of 99 drones and missiles hitting areas across Ukraine came to light on Saturday, with local officials in the Kherson region announcing one civilian dead. A resident of the Dnipropetrovsk region died in hospital from his injuries, according to the region's governor, Serhiy Lysak.
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