Britain Expels 23 Russian Diplomats...

LONDON — British Prime Minister Theresa May expelled 23 Russian diplomats on Wednesday, blaming Moscow for the poisoning of a former Russian spy and sharply escalating the dispute between the two countries.

Her statement to Parliament came after Moscow rejected a British deadline for Russia to explain itself over this month’s nerve-agent attack on the former spy, Sergei V. Skripal, and his daughter. The two countries have engaged in an worsening clash in recent days, with Britain widening an investigation into the incident and courting friends and allies to increase pressure on Russia, while Moscow has threatened to retaliate over any punitive action