Maritime authorities in Singapore said Friday they deployed air surveillance teams to investigate oil spilled after two tankers collided off its coast.

The Maritime and Port Authority of Singapore said the Libyan-registered Alyarmouk collided with the Singapore carrier Sinar Kapuas in its territorial waters.

"Alyarmouk reported that one of her cargo tanks sustained damage, resulting in spillage of crude oil," the port authority said in a statement. "Upon notification, MPA deployed a helicopter to assess the situation."

Latest maritime traffic data show the Libyan crude oil tanker was slated to arrive in China to unload its cargo by early next week. No information was immediately available regarding the amount of oil loaded on the tanker.

Maritime authorities said resources designated to respond to an oil spill have been deployed and corresponding agencies in Indonesia have been notified.

Singapore's government said both vessels are anchored safely and in stable condition. No injuries were reported and traffic was normal through the busy Strait of Singapore.

The maritime agency said it was investigating the cause of the collision.