facilitated

The cause of the fire has still not been determined, though authorities have said that polystyrene and protective netting placed on the outside of the windows facilitated its spread.

The cause of the blaze remains unclear but officials said on Friday that Styrofoam placed on the outside of the windows facilitated its rapid spread.

The tower blocks had been undergoing extensive renovations - and while the exact cause for the fire is unclear, police say materials on the outside of the buildings may have facilitated its spread.

The case marks the first time Telegram has cooperated with South Korean police, providing crime-related data that facilitated further investigations and led to Kim's arrest.

This, it said, would be "facilitated by the confusion caused by the demonstration called by his son".