Judy Murray, captain of the Aegon GB Fed Cup Team has said former tennis British number one Elena Baltacha remains 'determined and upbeat'.
Judy said: "Obviously this is a tough time for Bally, Nino and her family but she is a such a determined, upbeat person and everyone around her is staying positive as well. I know she'll be really grateful for all the support that she's getting."
More top news
State Department spokeswoman Heather Nauert said Pence "was ready to take this opportunity."
Opposition activists said government forces have brought in more reinforcements in recent days.