The first incident happened around 9pm at Bukit Batok Street 52, just as the woman, who is in her late 40s, was entering the lift.

Two men rushed in and pushed her against the lift wall. She did not understand what they were saying to her as both spoke Malay.

When she resisted, one of them took out a spanner and threatened her with it.

They then grabbed her handbag containing $50 and her $300 mobile phone, before running out of the lift.

She suffered a bump on her forehead though it is not clear how she sustained the injury.

Later that night at 11.45pm, another woman who is in her mid-50s, reported a similar robbery, this time at Woodlands Drive.

She had entered the lift, when two men pushed her against the lift wall, causing her to hit her head. When she resisted, they also threatened her with a spanner.

The thieves got away with her pouch that contained $38 and a $200 mobile phone.

She could only describe the men as in their 20s, and Malay-speaking.

Anyone with information can contact the Police hotline at 1800-255-0000.