Two separate fires Thursday afternoon in West and North Long Beach left three people hospitalized, including two in critical condition, authorities said.

The first blaze broke out around 1:44 p.m. in the the 100 block of East Harcourt Street in North Long Beach, according to Long Beach Fire Department spokesperson Brian Fisk.

There, firefighters witnessed a motor home in an alley that had gone up in flames, which ended up spreading to an adjacent residence, Fisk said.

Fire crews to extinguished the blaze within minutes of arriving, but a man and a woman had already suffered severed burns and were transported to a local hospital in critical condition, authorities said. The man and woman were only identified by authorities as being in their 30s.

Crews were then dispatched around 4:38 p.m. to 3300 block of Caspian Avenue in West Long Beach following reports of a house fire.

There, firefighters worked quickly to knock down the fire and rushed a woman to a local hospital with non-life-threatening burn-related injuries, Fisk said. The woman was also identified by authorities as being in her 30s.

No firefighters were injured in either blaze, Fisk said, adding that the cause of both fires remain under investigation.