Singers Selena Gomez and Niall Horan have fuelled romance rumours as they were again spotted together at a night out.

The duo was spotted at the Santa Monica Pier over the weekend in matching all-black ensembles. Gomez looked pretty in a long-sleeved shirt while Horan wore a black t-shirt topped with a long-sleeved unbuttoned shirt of the same hue, reports aceshowbiz.com.

In what looked like an attempt to avoid fuelling of their dating rumours, both of them maintained some distance while walking at the venue.

They seemed to enjoyed their time together at the amusement park. In addition to riding a roller coaster, both of them enjoyed a number of games and ice creams.

Neither Gomez nor Horan has commented on the photographs of their outing yet.

The outing marked the second time they were spotted together. Last week, they were reportedly seen making out at Jenna Dewan-Tatum's 35th birthday party at Bootsy Bellows here.