In an annual weeklong crackdown that ended Monday, police departments across Japan documented 4,383 instances of people driving under the influence of alcohol and arrested 149 people, the National Police Agency said in a report released Thursday.

Violators not arrested were fined and their licenses revoked.

The crackdown followed a recent spate of accidents resulting in fatalities and injuries caused by drunk drivers. On Aug. 25 in Fukuoka, three toddlers were killed and their parents injured after their sport utility vehicle fell off a bridge after rear-ended by a car driven by a drunk municipal employee.