This photo shows the Russian Zvezda service module

The Russian space agency Roscosmos said on Thursday that a smoke alarm was activated in a Russian service module on the International Space Station (ISS) and Russian news agencies reported that cosmonauts had smelled burning plastic.

Zvezda service module is the most significant Russian contribution in the space station design was the service module, intended to provide life-support and living quarters for a three-member long-duration crew.

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When in 1993 Russia was invited to join what would become the International Space Station, it brought along an array of hardware, drastically reshaping previously envisioned look of the outpost.

The 20-ton spaccecraft would also maintain the outpost's orbit with its propulsion system; supply and distribute electrical power from its solar panels, as well as send, receive and process flight control information with its internal computers.

The RIA news agency quoted Roscosmos as saying all systems were later working properly. Plans for a space walk later on Thursday were still in force, the space agency said.

Roscosmos said a smoke detector and an alarm were set off on the Zvezda service module, which provides living quarters for crew members on the ISS, when batteries were being recharged overnight.