A man and woman were tied up for two hours while burglars ransacked their home in Melbourne’s south-east early this morning, police say.

One of the men was armed with a gun and the other with a bar during the terrifying home invasion in Clayton South just after 5am.

Police said the thieves were wearing balaclavas when they broke into the house and woke the couple, aged in their 60s, and demanded cash from them.

They then assaulted the pair and bound them up while they ransacked the house.

Police estimate the man and woman were tied up for about two hours before the woman managed to free herself and run to a neighbouring house where she alerted her son.

The men are believed to have stolen jewellery before fleeing west along Lanark Street.

A Victoria Police spokeswoman said the violent robbery was not linked to another one three hours earlier in Essendon, when two masked men confronted a couple in their home.

The first offender is described as male with a slim build, approximately 185 centimetres tall, and was wearing dark clothing.

The second offender is described as male with a solid build, approximately 170 centimetres tall, and was wearing a black T-shirt and black track pants.

Anyone with information about the robbery has been urged to contact Crime Stoppers on 1800 333 000 or visit www.crimestoppers苏州美甲美睫培训.au