Prince Charles and his wife are spending two days in Saudi Arabia

Officials in the kingdom are trying to entice more people into the manual labour jobs market, which is normally dominated by foreign nationals.

His wife, the Duchess of Cornwall, went to the multinational school in the Saudi capital, Riyadh.

The school caters for 350 children from 52 different nationalities.

The prince wore protective goggles and a blue overall coat as he toured The General Organisation for Technical Education and Vocational Training.

Meanwhile, the Duchess enjoyed a performance by schoolchildren who sang a medley of Disney songs during her visit to the Multinational School of Riyadh.

Later, she joined them on the stage for a group photo, sitting among children who were wearing various costumes.

The prince takes a closer look at the equipment in a college workshop

Security concerns remain high in Saudi Arabia and the school is heavily protected by rolls of barbed wire, concrete barriers and armed guards in bullet-proof vests.

On Saturday, the prince became the first westerner to address the Imam Muhammad bin Saud University.

Religious tolerance

In his address, the prince continued to stress the theme of religious tolerance.

He said: "I think we need to recover the depth, the subtlety, the generosity of imagination, the respect for wisdom that so marked Islam in its great ages.

"Islam called Jews and Christians the peoples of the book, because they, like Muslims, are a part of a religion of sacred texts."

Frequent targets

Security for the two-day stay in Riyadh is intense with westerners having frequently been targeted in the region.

The Foreign Office has warned of a high threat of terrorist attacks.

Thirty-five people were killed by suicide bombers in 2003 at housing compounds in Riyadh.

The prince and the Duchess of Cornwall are in the city as part of a two-week tour of the Middle East.