The cameras also caught the US leader appearing to struggle to keep his eyes open. He seemed on the verge of nodding off as he sat at the front of the packed cathedral.

'AI can still behave in unexpected ways.'

The Brontanax - named after the ancient Greek words for thunder and king - is designed to operate alongside a crewed plane such as the Typhoon. 

Evacuees described huge ash clouds ‘basically blocking out the sun’.

The 18-month-old girl was found in a ‘critical condition’ inside the vehicle in Almada on the southern bank of the Tagus River directly opposite the capital Lisbon (Picture: Getty Images)

Well, for those with cash to burn, at least.