Singapore's iconic skyline is shrouded in a fire-related haze. Here's what it looks like across the island.

• Smoke from fires in Indonesia has blanketed Singapore in haze, obscuring its iconic skyline.
• Air pollution hit its highest level this year on Friday, reaching “very unhealthy” levels.
• The haze has disrupted flights, shuttered outdoor sports facilities, and canceled a run for nearly 3,000.

Nearly 3,000 runners have had their plans canceled

The ISCA Run, scheduled for Saturday at Gardens by the Bay, was canceled because of the haze, affecting almost 3,000 registered participants.

An ISCA spokesperson told Business Insider that organizers made the call early because air conditions remained unpredictable and they were concerned about the safety of runners, including young children taking part in the Family Run.

The pollution is keeping people indoors

Singapore’s public sports operator temporarily closed all outdoor and non-air-conditioned sports facilities it manages across the island on Friday because of the haze.

Indoor, air-conditioned facilities have remained open.