KUALA LUMPUR, Sept 9 — The girlfriend of an American who was aboard the still-missing Malaysia Airlines (MAS) Flight MH370 has renewed calls to remove Malaysia’s involvement in the investigation on the aircraft’s disappearance, after claiming again of possible sabotage.

According to the New York Daily News, Sarah Bajc believes that “something is being covered up” and that there are “active steps being taken to interfere with finding the plane”.

Bajc, who was dating passenger Philip Wood, was also quoted in the report as telling America’s NBC News that she believes the ongoing probe into the aircraft’s unsolved disappearance should no longer be Malaysia’s duty.

“We want to come back to taking this investigation away from the Malaysian government. We believe it’s been mishandled,” Bajc was quoted saying in the report on the “Today” show segment.

“As a group of family members, we are gaining strength. We want them to know we are not going to go away. Until they agree to pursue this more independently in a way that we can feel confident in, we are going to get noisier and noisier.”

Flight MH370, the MAS Boeing 777-2ER carrying 239 people aboard, took off from Kuala Lumpur International Airport (KLIA) on March 8 and was headed to Beijing, China, before it fell off the radar less than an hour later.

But despite six months of searching by a multi-nation team of investigators, not a single debris from the aircraft has turned up. The international hunt is still ongoing for the plane in the perilous vast waters of the Indian Ocean, off Australia’s coast.

Shortly after the aircraft’s disappearance, the families of those aboard formed a group called “Voice370” with some 300 members, including Bajc.

The group has since been actively sourcing for information pertaining to the specification of the aircraft, aviation and a campaign to raise US$5 million (RM15.8 million) to get whistle-blowers with information on the jet’s fate, among other activities.

Voice370, however, has accused the government of concealing information and incompetency as no trace of the aircraft has been found despite an extensive search in the southern Indian Ocean.

Late last month, Malaysia signed a deal to strengthen its partnership with Australia in the ongoing search for MH370.