Bank and resources slump sees European shares slide to 2-1/2 year low
* FTSEurofirst 300 down 3.3 pct
* Societe Generale slumps 12 pct after results
* Swedish banks hit by rate cut, further in negative
* Rio Tinto falls after dropping dividend commitment (Updates prices, adds detail and quote)
By Kit Rees and Alistair Smout
LONDON, Feb 11 (Reuters) - A top European share index plunged to its lowest level in 2-1/2 years on Thursday, led down by a renewed slump in banks and miners, with Societe Generale sliding after disappointing results.
The pan-European FTSEurofirst 300 was down 3.3 percent at 1,201.06 points by 1250 GMT, having earlier in the session slumped to its lowest level since August 2013.
The index had snapped a 7-day losing run in the previous session when it rose 1.8 percent. But a 10.8 percent slump so far in February has the index set for its biggest monthly fall since 2008, and it is down 16.4 percent so far this year.
Banks were down over 6 percent, the top sectoral faller. The sector is down over 10 percent so far this week as concerns over profitability in a low-growth, low-interest rate environment have knocked confidence in the sector. Continuación...