The two suspects in the San Bernardino County shooting in California that left 14 people dead on Wednesday have been identified as Syed Farook and Tashfeen Malik.

The two, who were said to have been married and had a child, were killed in a gun-battle with the police hours after the attack at the Inland Regional Center on Wednesday.

Farook, 28, was a US citizen, and had visited Saudi Arabia this year, from where 'he returned with a wife', according to reports.

Farook was believed to be an environmental health specialist in San Bernardino County, and was listed as a resident of the Redlands city from where the police chased down a black SUV and gunned down the two suspects.

The 28-year-old had reportedly attended the holiday party at the Inland Regional Center on Wednesday, but had left midway, CNN reported citing law enforcement sources. 

A former co-worker of Farook told The Los Angeles Times that she had heard he had returned to work after a paternity leave. She described him as 'very quiet'. 

The Council on American Islamic Relations told reporters that Farook's family did not know where he and his wife were since Wednesday morning. 

Meanwhile, Farook's brother-in-law expressed shock at the fact that he was involved in the deadly shooting.

"I have no idea ... why he would do something like this. I am in shock," Farhan Khan, said to be the husband of Syed Farook's sister, told the US media. 

Khan said he had not spoken to Farook for almost a week.