US markets plunge on continuing Greek debt concerns

US stockmarkets have plunged in New York as concerns about high levels of European government debt continued to shake investor confidence.

Stocks fell steeply over Greece's debt problems, and falls may have been made worse by computer-driven trade.

At one point the Dow Jones was down by more than 9%, its worst fall since 1987, before starting to recover.

At close in New York the Dow Jones was down about 3.20%, the S&P down 3.24%, and Nasdaq 3.44%.
Stocks fell steeply over Greece's debt problems, and falls may have been made worse by computer-driven trade.