European equity futures slump after Greek vote

London - European stock index futures fell sharply on Monday, with investors trimming their exposure to riskier assets after Greeks rejected austerity measures demanded in return of a debt deal.

European leaders called a summit for Tuesday to discuss their next move after the surprisingly strong victory by the 'No' camp defied opinion polls that had predicted a tight contest.

READ: Greeks defy Europe with overwhelming 'No'

German chancellor Angela Merkel's deputy said Athens had wrecked any hope of compromise with its eurozone partners by overwhelmingly rejecting further austerity.

At 08:02, futures for the Euro STOXX 50, Germany's DAX and France's CAC were 2.5 to 3.1% lower. Britain's FTSE futures fell 1.1%.

Greek Finance Minister Yanis Varoufakis also announced his resignation on Monday, saying he had been "made aware" that some members of the eurozone considered him unwelcome at meetings of finance ministers.