San Jose, Costa Rica  - Former German Formula One driver Michael Schumacher was shocked and concerned over the extent of the damaged caused by last week's earthquake in Costa Rica.

The seven-times Formula One champion visited the region around Poas volcano, which were hit hardest together with Costa Rican Transport Minister Karla Gonzalez.

Schumacher is visiting the Central American state for a campaign to promote road safety.

Costa Rica was hit by an earthquake measuring 6.2 on the Richter scale last Thursday. Twenty-one people were killed and about two dozen are still missing, officials said. Damage has been estimated around 100 million dollars. (dpa)