A climber installs the Ukrainian national flag on a roof, marking the Day of the State Flag, on the eve of the Independence Day, in Kiev, Ukraine, August 23, 2016.
Ukraine will expel 13 Russian diplomats in response to the poisoning of a former Russian spy in England, Ukrainian President Petro Poroshenko said on Monday.
The decision was taken "in the spirit of solidarity with our British partners and transatlantic allies and in coordination with EU countries," Poroshenko said in a statement.
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