HEREFORD MP Paul Keetch has responded well to tests in a London hospital.

The Liberal Democrat MP was taken seriously ill while on board a flight to the USA on Sunday.

Pilots turned the plane back to the capital in order for Mr Keetch to receive urgent medical assistance at St Bart's Hospital.

His office this morning said he "underwent several tests and responded well to all of them".

Mr Keetch's condition is still described as stable.