MADRID, June 10 (Reuters) - Spanish's 1,000 megawatt Asco I nuclear plant began a scheduled halt at midnight on Tuesday, technicians said.
"The halt began as scheduled. We are lowering output bit by bit, and are now at about 30 percent," a technician said by telephone.
The halt was scheduled at the plant in northeast port Tarragona in order to clean up after a leak announced in April, for which Spain's watchdog has screened more than 2,500 people. (Reporting by Martin Roberts; Editing by Kim Coghill)