NEW DELHI, Sept. 5 (Xinhua) -- A passenger plane of India's national carrier Air India skidded off the runway after landing at an international airport in the southern state of Kerala Tuesday, a senior aviation official said.

However, all the 102 passengers and six crew members were evacuated safely by emergency officials, he said, on condition of anonymity.

"The incident took place this morning when Air India Express aircraft from Abu Dhabi landed at Kochi International Airport in Kerala's Kochi city. While approaching the parking bay, it veered off the runway and partly rolled into a drain," the official said.

"All the passengers and crew members were evacuated from the Boeing 737-800 aircraft through a ladder. All are safe. There have been no casualties," he said.

Local TV channels showed footage of some wheels of the aircraft being stuck in the drain that runs along the runway and evacuation of passengers and crew members.

The plane has been grounded and a probe has been ordered by India's aviation regulator Directorate General of Civil Aviation. "We will ascertain if it was the fault of the pilots or some technical error," the official added.