The crew on the International Space Station reported smoke and smell of burning plastic, which triggered fire alarms were triggered on Station, reports BBC.

According to the Russian media, the incident was reported from the Russian-built Zvezda module, which provides living quarters.

In the past few years, the age-old space station has suffered a number of failures and a Russian official had recently warned of outdated hardware and failing systems.

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These failures include air leaks, misfiring engines and cracks.

Russia’s space agency, Roscosmos, said later that all systems were back to normal.

The agency said during recharging of the station’s batteries, the smoke was detected but the crew had now returned to “regular training”.

The burning plastic smell spread from the Russian section to the US segment.

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US space agency Nasa said a spacewalk on Thursday would still go ahead as planned.

Two Russian cosmonauts are set to carry out work on the recently delivered Nauka science module.

Russian official Vladimir Solovyov told state media on 1 September that the ISS could suffer irreparable failures due to outdated equipment and hardware.

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Solovyov, chief engineer at space company Energia, told state media that atleast 80% of in-flight systems on the Russian segment had crossed its expiry date.

Built in 1998, the ISS was part of a joint project between Russia, the US, Canada, Japan and several European countries. It was originally designed for a 15-year lifespan.

In July, a malfunction caused the jet thrusters on the Nauka module to fire without warning, destabilising the ISS.

Russia said in April that it could leave the ISS and build its own space station by 2030, though nothing has been finalised.

There are currently seven astronauts on board the ISS: two from Russia, three from the US, one from France and one from Japan.