Andrea Gordon from the Care Quality Commission said:
"We were pleased to see some improvements had been made and it is important that these are now embedded and sustained.
"However, we also found the trust needed to carry out more work in relation to how it assesses and assures itself of the quality of its own service. In light of this CQC has issued a warning asking the trust to ensure improvements are made in relation to this.
"Our inspectors will be returning in the near future to check on whether this further work has been effectively completed."
More top news
The London property market is expected to be the hardest hit as buyers sit it out to see how the economy will be affected.
The former London mayor paid tribute to David Cameron just hours after the Prime Minister announced his resignation.
The pound crashed to its lowest level in 30 years as Britain voted to leave the EU.