At lease 15 US states have announced refusing to resettle Syrian refugees in their own state in the wake of the horrific terror attacks in Paris.

A dozen of Republican governors from the states of Arizona, Arkansas, Florida, Illinois, Indiana, Louisiana, Massachusetts, Mississippi, North Carolina, Ohio, Texas and Wisconsin, made the announcement on Monday.

Two other Republican governors, Michigan's Rick Snyder and Alabama's Robert Bentley, already announced on Sunday that they would refuse to take in Syrian refugees for concern about the safety of their own residents.

New Hampshire Governor Maggie Hassan was the only Democratic governor who sided with the Republican Party on the refugee issue.

Some Republican governors, including Snyder, changed mind on accepting Syrian refugees after the Paris attacks, which killed 129 people and wounded 352 others on Friday.

The extremist group Islamic State (IS) has claimed responsibility for the attacks and threatened to launch similar attacks in Washington D.C., the US capital. Early investigation showed that at least one of the terrorists that carried out the Paris attacks was from Syria under the disguise of a refugee.

Despite the mounting criticism and objection, US President Barack Obama insisted Monday that the plan to accept about 10,000 Syrian refugees would not be changed.

"Slamming the door in their faces would be a betrayal of our values," He said earlier Monday at the G20 summit meeting in Turkey.

But the Republican Party has been increasing pressure on Obama to cancel or scale back the plan to resettle Syrian refugees for security reason.

In a letter to Obama Monday, Texas Governor Greg Abbott urged the Obama administration to halt the plans to resettle Syrian refugees in the country.

"The threat posed to Texas by IS is very real," Abbott wrote, citing "American humanitarian compassion could be exploited to expose Americans to similar deadly danger."

Mississippi Governor Phil Bryant vowed in a statement that he would "do everything humanly possible to stop any plans from the Obama administration to put Syrian refugees in Mississippi," because such a plan is "extremely dangerous."

Florida Governor Rick Scott said that, as his state does not have the authority to prevent the federal government from funding the relocation of Syrian refugees, he urged US Congress "to take immediate and aggressive action" to prevent the Obama administration from using any federal tax dollars to fund the relocation of up to 425 Syrian refugees to Florida.

Republican House Speaker Paul Ryan said House leaders were considering adding language opposing the refugees to the large government funding bill that should be passed by Dec. 11. "We've got to make sure we're protecting ourselves," he said.

In contrast, several Democratic governors said they would continue accepting Syrian refugees, including Connecticut Governor Dannel Malloy, Pennsylvania Governor Tom Wolf and Vermont Governor Peter Shumlin.

The US State Department, which is responsible for the Syrian refugee resettlement, said Monday it is steadfastly committed to accepting refugees, while reviewing whether or not states have the right to pull out of the program.