New Delhi: Prime Minister Atal Behari Vajpayee on July 31 disapproved of the recent Chinese transgression in Arunachal Pradesh saying this was not in keeping with the spirit of the understanding on the border issue.

Observing there were differences between the two countries on the perception on the line of actual control (LAC), he told the Rajya Sabha, "We have problems and these problems have come to the fore (with the recent incident).

"Whatever happened on LAC was not as per decorum. We have brought this to the notice of Chinese authorities," he said replying to clarifications sought by members on his statement on his recent trip to China.

PTI