North Korea’s long-delayed Pyongyang General Hospital project, billed as the country’s first “modern” public hospital, has shown new signs of construction activity in recent weeks after leader Kim Jong Un said that it should open by the end of the year.

NK Pro analysis of Planet Labs satellite imagery shows the hospital’s rooftop helipad was erased and then resurfaced in the weeks since mid-October, while temporary project administration-related structures outside the west entrance were removed earlier this month.

Construction on the large hospital, located on the Taedong River in central Pyongyang, appeared