Mr Zelensky promised help to all families whose relatives were killed or injured in the attack.
Moscow says it has enough experience to mitigate the impact of such restrictions.
Six private houses, shop buildings, education facilities and a hospital were damaged.
Mr Kim was said to have arrived by train from North Korea.
Russia has blocked an “unprecedented wartime deal” that allows grain to flow from Ukraine to countries in Africa, the Middle East and Asia.
Citing informants, several Russian media outlets had already reported on Wednesday that Mr Surovikin had been arrested.
Russia has announced that journalists from “unfriendly countries” will not attend this year’s St. Petersburg International Economic Forum.
Ukraine’s presidential adviser Mykhailo Podolyak pointed out that Russia was up to the “preparation of a large-scale terrorist provocation.”
Mr Stoltenberg praised the raising of the Finish flag for the first time at the alliance headquarters in Belgium.
In a travel alert by the State Department, U.S. citizens were also asked to “Exercise increased caution due to the risk of wrongful detentions”.
