June 30 (Reuters) - The following are the top stories on the business pages of British newspapers. Reuters has not verified all these stories and does not vouch for their accuracy.

The Times

- British American Tobacco BATS.L plans to cut about 20% of its workforce as it pursues an AI-driven overhaul to lower costs and lift profits amid regulatory challenges and delayed launches.

- BT BT.L and Verizon VZ.N announced a deal to combine their international enterprise operations into a 50:50 joint venture, focussing on serving multinational clients and bringing together $4 billion in combined annual revenue.

The Guardian

- Crypto firms operating in the UK will be forced to prove they can weather market shocks and hold capital against risky assets as part of sweeping new rules announced by the Financial Conduct Authority.

- Nationwide NBS.L is axing 600 jobs in the first major round of cuts linked to its controversial takeover of the high street bank Virgin Money.

The Telegraph

- WH Smith's SMWH.L former high-street business TG Jones, is on the brink of insolvency after a judge delayed ruling on its restructuring plan.

Sky News

- Britain's biggest building materials group Breedon BREE.L, approached smaller rival Marshalls MSLH.L about a merger aimed at creating a 1.5 billion pound London-listed construction group.

- Sky, the owner of Britain's Sky News, is to become part of NBCUniversal under a spin-off plan revealed by parent firm Comcast CMCSA.O.