British shares headed for their biggest two-day slide in a month in a broad-based slide that took almost all of the FTSE 100 Index companies down.

The FTSE 100 Index dropped 0.9 percent at 8:21 a.m. in London, with 97 of its shares declining. Royal Bank of Scotland Group Plc and Barclays Plc slipped more than 2 percent, while Standard Life Plc also fell. The benchmark gauge was set to retreat 0.5 percent this week.

The broader FTSE All-Share Index and Ireland’s ISEQ Index also dropped as equities declined across the region and in Asia.

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