The Latest: Russian officials know of no new expulsion plans

A bus allegedly carrying British diplomats expelled by Russia, leave the British Embassy in Moscow, Russia, Friday, March 23, 2018. 23 British diplomats who were ordered out of Russia as part of the ongoing tit-for-tat over the ex-Russian spy's poisoning case are due to leave for Britain on Friday. (AP Photo/Pavel Golovkin)
British Prime Minister Theresa May speaks with the media as she arrives for an EU summit at the Europa building in Brussels on Friday, March 23, 2018. Leaders from the 28 European Union nations meet for a second day of an EU summit to assess the state of Brexit negotiations and the prospect of a trade war with the United States. (AP Photo/Virginia Mayo)

The Latest: Russian officials know of no new expulsion plans

A bus allegedly carrying British diplomats expelled by Russia, leave the British Embassy in Moscow, Russia, Friday, March 23, 2018. 23 British diplomats who were ordered out of Russia as part of the ongoing tit-for-tat over the ex-Russian spy's poisoning case are due to leave for Britain on Friday. (AP Photo/Pavel Golovkin)
British Prime Minister Theresa May speaks with the media as she arrives for an EU summit at the Europa building in Brussels on Friday, March 23, 2018. Leaders from the 28 European Union nations meet for a second day of an EU summit to assess the state of Brexit negotiations and the prospect of a trade war with the United States. (AP Photo/Virginia Mayo)