Baidu’s robotaxi operations in Wuhan have been suspended, sources tell the publication.

China has suspended issuing new licences for level-four autonomous vehicles (AV) after more than 100 Baidu Apollo Go robotaxis abruptly stopped in Wuhan in late March, Bloomberg news reported. Level-four AVs do not require humans involvement to drive.

The suspension will prevent AV companies from adding new robotaxis to their fleet or expanding to new cities. It is unclear how long the suspension will last, sources told the publication.

Meanwhile, Baidu’s robotaxi operations in Wuhan have also been suspended while authorities investigate the incident.

The incident caused traffic disruptions and highway collisions, trapping passengers on the streets of Wuhan. Videos on social media show Baidu AVs lined up on the road, unmoving.