The UAE will complete a rail link to Saudi Arabia by December 2021, a senior transport official said on Monday.

The planned 2,100 km passenger and cargo network connecting the six GCC states was initially put on hold, and has now been pushed back at least three years, according to a Reuters report.

"By the end of December 2021 we will have a connection between us and the Saudis," Abdullah Salem Al Kathiri, director general of the Federal Authority for Land and Marine Transport, said at a conference in Dubai.

READ: UAE's Etihad Rail set to issue Phase 2 tenders

The UAE suspended construction of the network in 2016, while Oman said it would instead focus on building its domestic network.

Earlier this month, it was reported that the UAE's Etihad Rail is set to issue tenders for Phase 2 of its country-wide rail network project.

Phase 2 of the project will connect the UAE's sea ports and the project's first phase.