Business Live: Sterling unsettled - BBC News
The pound starts to fall again, dipping through $1.21, as the dollar strengthens after Fed cut.
The pound slumped to a low of $1.2085 at one point during the day, its weakest since January 2017, although has pushed back up through $1.21 as London closes.

The FTSE 100 was little changed on the day as the market was closing, around 7,584 - that's 1.9 points lower.

The company that owns the London Stock Exchange was the biggest gainer after announcing a deal, mentioned earlier, to buy financial data company Refinitiv, rising 7%.

The FTSE 250 was 32 points lower at 19,634.

In the US, the Dow Jones Industrial Index and the S&P 500 were both around 1% higher.