KUALA LUMPUR, Malaysia - (AP) - A yellow object in the South China Sea thought to be possibly a life raft from a missing Malaysia Airlines jet has turned out to be floating moss-covered trash.

After more than two days of searching for the plane with 239 people on board, there's still no confirmation that it's even crashed.

Meanwhile, authorities have questioned the travel agency in Thailand that sold one-way tickets to two passengers who used stolen passports.

Malaysia Airlines Flight MH370 went missing early Saturday morning on a flight from Kuala Lumpur to Beijing.

The plane lost contact with ground controllers somewhere between Malaysia and Vietnam, and searchers in a low-flying plane spotted an object that appeared to be one of the plane's doors, the state-run Thanh Nien newspaper said.

Doan Huu Gia, the chief of search and rescue coordination center, said Monday that six planes and seven ships from Vietnam were searching for the object but nothing had been found.

An IBM executive from Texas is one of three Americans onboard the missing plane

Philip Wood, 50, was identified as one of the unaccounted-for passengers, his brother confirmed. Wood had been working in Beijing for the past two years and his family says he was preparing to move to Kuala Lumpur, the capital of Malaysia.

In Armonk, where IBM is headquartered, residents and IBM workers say they're shocked about the news.