Euro zone banks fall to knock back European shares
* FTSEurofirst 300 down 0.3 pct
* Index fell last week to lowest level since mid-Dec 2014
* Broker upgrades lift Ericsson, LVMH and CNP
* But Casino falls on bearish S&P note (Adds closing prices)
By Alistair Smout
LONDON, Jan 18 (Reuters) - Euro zone banks weighed on European stocks on Monday after news that the European Central Bank was scrutinising some non-performing loans, sending a top index back to its lowest point in over a year.
The euro zone bank sector fell 3.1 percent, with traders citing news over the weekend that the ECB is quizzing a number of euro zone banks about non-performing loans as it ramps up efforts to tackle the region's mountain of bad debt.
Spain's Banco de Sabadell, France's Credit Agricole and Portugal's Banco Comercial Portugues slipped 4.5-7.8 percent.
Italy provided many of the sector's top fallers, with Banco Monte Paschi down 14.8 percent, and Banco Popolare , UniCredit and Mediobanca down 6.7-4.8 percent. Continuación...