American singer Nicole Scherzinger says having a long-distance relationship with British Formula One racing driver Lewis Hamilton is a "challenge".

"Our biggest challenge is long distance, but I feel like I'm mostly here in the UK, even though my home is in the US," she was quoted by contactmusic.com as saying.

She also said that she is keen to have children with Hamilton, but only "in the right time".

She said: "I come from a big family and I'm a family person and one day, when god wills it, I will have a family but in the right time."