Syria trying to cover up executions, say activists
Valerie Amos was expected to give the first outside assessment of the conditions in the neighbourhood in the central city of Homs.
The government had sealed off Baba Amr since regime forces recaptured the neighbourhood from rebels last Thursday following a deadly assault that lasted nearly four weeks. Activists accuse the government of using the past six days to try to cover up evidence of atrocities by the regime.