The WikiLeaks founder, who was granted political asylum by the Ecuadorian embassy last week, is likely to be arrested if he sets foot outside the London building where he has been holed up since June 19, reports The Daily Telegraph.
Assange is wanted in connection with sex crime allegations in Sweden. He has avoided extradition by seeking refuge at the embassy, but risks being transferred to America if he travels to face questioning.
The Australian angered the US government in 2010 by publishing secret US diplomatic cables on his website. The US army intelligence analyst suspected of leaking the information is currently being held at an American military base under multiple national security charges and faces up to 52 years in prison.
Foreign ministers from across the Americas are due to discuss Assange's situation next Friday. The Organisation of American States (OAS) voted to hold a meeting following Ecuador's actions, which Mr Assange described as an ''historic victory''.
In the meeting, OAS secretary general Jose Miguel Insulza said representatives would consider ''the problem posed by the threat or warning made to Ecuador by the possibility of an intervention into its embassy in London''.
''What is being proposed is that the foreign ministers of our organisation address this subject and not the subject of asylum nor whether it should be granted to Mr Julian Assange," he explained.
''That will be discussed between Great Britain and Ecuador, the issue that concerns us is the inviolability of diplomatic missions of all members of this organisation, something that is of interest to all of us.''
A Swedish minister recently branded Julian Assange a "coward" and a "pitiful wretch" for seeking asylum in London. Foreign secretary William Hague has in the past made it clear that Assange would not be granted safe passage out of the UK. The British government has said that it would be "legally obliged" to hand Assange over should he emerge later today.