Members of the opposition have urged protests over US president Donald Trump's travel ban on seven Muslim countries.

Pakatan Harapan chief secretary Saifuddin Abdullah on Twitter urged a protest at the US Embassy this coming Friday.

"Malaysian should protest the Muslim ban because it is against religious freedom and human rights.

"Let's demonstrate in front of KL US Embassy this Friday," he tweeted.

Trump on Friday enacted the travel ban for seven Muslim countries namely Iraq, Syria, Iran, Yemen, Sudan, Libya and Somalia.

The order also bars entry for Syrian refugees.

Following this, there have been reports of Muslims from these countries being turned back upon arrival on US soil.

A federal US judge has since granted a stay on the ban, following a lawsuit filed by the rights watchdog American Civil Liberties Union on behalf of two Iraqis detained at New York's JFK airport.

'inhumane and unjustified'

DAP lawmaker Ong Kian Ming described the ban as "inhumane" and "unjustified".

He urged Prime Minister Najib Abdul Razak to condemn Trump's move.

"Najib on Jan 21 sent out a congratulatory message to Trump on his inauguration as the 45th President of the US.

"Will Najib also send a message to Trump to condemn this executive action that affects the citizens of these Muslim majority countries?" the Serdang MP said in a statement today.

Najib is on good terms with Trump, and reportedly has a signed photo of the US president at his office with the words "To my favourite Prime Minister".

The prime minister has also been vocal on Muslim issues, condemning Myanmar for violence against Rohingya Muslims in Rakhine province.

Meanwhile, Opposition Leader Dr Wan Azizah Wan Ismail urged Malaysia and the Organisation of Islamic Cooperation (OIC) to intervene in the matter.

"Malaysia as a member of the OIC, which comprises 57 nations including those affected by President Trump's executive order, must engage the current US administration through all available diplomatic channels in order to resolve all arising issues

"At the same time, I urge the OIC to convene an emergency meeting to discuss and lay out specific strategies and diplomatic actions in order to ensure justice and promote understanding among all parties concerned," Wan Azizah said in a statement today.

She said while each country has a right to control its borders and immigration, the blanket ban applied by the Trump administration was "very regrettable".

DAP parliamentary leader Lim Kit Siang echoed Wan Azizah's sentiments, in a statement, urging Najib to convene an OIC meeting on the matter, as well as issue a diplomatic protest to Trump.