Toronto Fire Services say lithium-ion batteries were involved in a fire at a city shelter.

Firefighters went to a high-rise building at 2180 Islington Ave. after reports of black smoke. The building used to be a hotel and is now a shelter.

The fire chief said crews found smoke and put out the fire on the seventh floor with the building's sprinkler system.

The cause of the fire is not known yet, but lithium-ion batteries were found in the unit where the fire started.

No one was hurt in the fire.

The fire is still being investigated, and part of the seventh floor has been evacuated. But there are empty units to move people to.

Lithium-ion batteries have caused several fires this year. They power things like smartphones and e-bikes.

A day earlier, a fire broke out at another high-rise, and four people were taken to the hospital.

Batteries and e-bikes were found on the balcony of the unit where the fire started.

The batteries were damaged, which made the fire worse.

Toronto Fire Services has responded to 76 lithium-ion battery fires this year, which is 35% more than last year.

The fire chief said the number of lithium-ion battery fires is increasing.

The chief warned that these fires can have devastating consequences.

When lithium-ion batteries get too hot, they can catch fire.

Many fires involving lithium-ion batteries happen when people use the wrong parts or charge them incorrectly.

Lithium-ion batteries are usually safe, but they can be dangerous if they are damaged or charged incorrectly.

To stay safe, look out for strange smells, smoke, or heat coming from devices.

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