MPs vote for a government proposal to establish a Parliamentary Committee to investigate the scandal, but an opposition motion for a judge-led inquiry is rejected.
Prime Minister Boris Johnson announces that the UK's nuclear weapon arsenal will increase from 180 to 260 warheads, and that the UK will shift its foreign policy focus to the Indo-Pacific region, while remaining committed to NATO. The government's review also identifies Russia as the "most acute threat" to British security.
The government raises its alert level from 3 to 4, meaning transmission is "high or rising exponentially." It comes after the government's scientific adviser warned that there could be 50,000 new cases a day by mid-October without further action.
The European Union rejects a request from the British government to negotiate a migration deal replicating the Dublin Regulation that would grant the deportation of undocumented migrants in the UK to EU member states.
The UK government sets out proposals to legalise gay marriages in England and Wales. The Church of England and Church in Wales will be banned from conducting wedding ceremonies for same-sex couples, but other religious organisations will be allowed to conduct gay weddings if they wish.
In the United Kingdom a disagreement emerges between the Westminster and Scottish governments over a referendum on Scottish independence, after Prime Minister David Cameron tells a Sky News interview that a quick decision is needed on the matter for the sake of the economy.