The United Nations human rights commissioner, Mary Robinson, has arrived in Belgrade.

She said she wanted to assess the human rights situation in Serbia and to hear about the deaths and injuries to innocent civilians from the NATO bombing.

After her arrival Mrs Robinson went to the southern Serbian city of Nis where Yugoslav officials say more than twenty people were killed last Friday by a NATO cluster bomb which hit a market and a hospital car park.

A planned meeting tomorrow with President Milosevic has been criticised by some human rights campaigners.

There are no plans for her to visit Kosovo.