Business executives from global clothing giants H&M Inditex and Gap have canceled trips to Dhaka this month after the killings of two foreigners, industry sources said, causing anxiety for Bangladesh's $25 billion garment export sector.

Bangladeshi suppliers to the world's top brands said they didn't expect the disruptions to hurt their orders for the year-end Christmas season.

But the attacks, claimed by the Islamic State, increase the pressure on an industry which faces competition from other low-wage countries and is trying to repair its safety image after several fatal accidents.