Most Zambian commuters use minibus taxis

Mr Mwanawasa, who was elected in December promising to fight poverty and corruption, said he hoped to set an example for his ministers.

He said it was part of a new push to save money which was being spent on his presidential motorcade and entourage.

In the past, government officials have been accused of widespread corruption.

Zambia's 10 million people are said to be among the world's poorest.

Modest

Known as "Mr Integrity" by his supporters, Mr Mwanawasa's latest gesture is perhaps not surprising.

During his first press conference to announce his cabinet, he stressed that his ministers would have to abide by a stringent set of requirements - including honesty, integrity, discipline and devotion to duty.

Mwanawasa's predecessor didn't go gently into retirement

Friends and foes alike acknowledge that he is a man of modest habits.

They say he has resisted attempts to change the furniture or decor in State House since he took over because he does not want to waste any money.

His predecessor, however, found it rather difficult to let go of the trappings of power.

A judge had to order former President Frederick Chiluba to stop using government-owned facilities and personnel after he left office.

Ticket to ride

They included a Mercedes, a number of other vehicles, the keys to a government-owned house in a posh Lusaka suburb, his security guards and some other domestic staff.

Departing from the old and wasteful practice of chauffeur-driven rides in government cars, President Mwanawasa now wants his ministers and party officials to use public transport to see him off at the airport when he travels out of the country.

From now on, the ministers' trip to the airport could turn out to be rather bumpy - and quite slow.

And they will need a bus ticket.