The US Treasury says it's been hacked. Live from the UK, this is the Marketplace Morning Report from the BBC World Service. I'm Gideon Long in Fulianne. Good morning. The US Treasury says it's investigating a major incident in which it says computer hackers, backed by the Chinese state, stole unclassified documents. Beijing has denied

responsibility for the attack. From Washington, here's the BBC's Rowan Bridge.

According to the letter sent by the US Treasury, Chinese state-sponsored hackers gained access

to departmental workstations. From there, they were able to get into what are described

as certain unclassified documents. The letter says the were able to get into what are described as certain unclassified documents.

The letter says the hackers managed to get into the system after stealing a key, which allowed

them to bypass security on a cloud computing service. It was provided by a company called Beyond

Trust. They say the service has now been taken offline and there's no evidence that the Chinese

state actor still has access to Treasury information.

The department says it's working with law enforcement across government to ascertain what

the impact of the incident has been.

Rowan Bridge there.

Chinese manufacturing data is out today and it's not pretty.

The BBC's Nick Marsh in Singapore talks us through it.

The figures that we've got for December are not great for China. Economic activity grew,

which is good, but only just and at a slower rate than last month. So that's not good. It was

lower than analysts expected and it's not a great sign for the health of the Chinese economy

as we end this year. Manufacturing is obviously very important for China. It's the health of the Chinese economy as we end this year.

Manufacturing is obviously very important for China.

It's the factory of the world.

It's where we get so many of our goods from.

And if growth is slowing there, it's a reflection of firstly how much we're buying from China,

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