The FTSE 100 was down in early trading as ongoing uncertainty about the Greek bailout hit markets and sent the euro lower against the dollar.
Sterling has recovered from a seven-week low, moving higher against the dollar after it fell on Moody's threat to downgrade a raft of UK banks.
Public borrowing surged to a record £10bn in April, according to the Office for National Statistics (ONS).
Bank stocks edged lower in early trading on Tuesday after credit ratings agency Moody's said it may cut its rating on 14 British lenders.
European indices have plunged this morning amid continuing worries over the eurozone debt crisis.
BP has reached a compensation settlement with one of the owners of the well which leaked millions of gallons of oil into the Gulf of Mexico last year.
I have long been of the view that when economic historians review the last 20 years they will condemn Gordon Brown as one of the worst Chancellors (and Prime Ministers) we ever had.
Upbeat economic data has boosted investor sentiment on both sides of the Atlantic with major European indices and the Dow all flying high in mid-afternoon trading.
With embattled Dominique Strauss-Kahn resigning from the IMF amid rape allegations a vacancy has arisen for the top spot.
Lloyds has told the government it will fight off any attempt at forcing it to sell off more branches than already agreed.