Nearly 300 Bangladesh garment factory owners have marched through the capital's streets to draw attention to the impact ongoing unrest is having on the country's key export earner.

They are calling on both the ruling and opposition parties to put an end to political unrest in the run-up to January's parliamentary election.

The apparel makers marched from the offices of the Bangladesh Garment Manufacturers and Exporters Association (BGMEA) to Prime Minister Sheikh Hasina's official residence chanting "Save garment sector, save the country." 

"We've told the prime minister that we do not want to be the victim of politics. If the current situation continues, we'll have to shut our businesses," Atiqul Islam, president of the BGMEA, told reporters.

They also said that the apparel sector was on brink of collapse because of frequent general strikes, blockades and political chaos that have almost paralysed the supply chain. 

The prime minister is said to have assured the garment owners that the government would ensure adequate security for the sector.

The action came amid a second nationwide blockade enforced by the Bangladesh Nationalist Party (BNP), and followed a suspected arson attack at Standard Garments, one of the largest manufacturers in Bangladesh.