Rapper Soulja Boy has asked fans for their prayers after his girlfriend and daughter were involved in a serious car crash.

The Crank That singer took to Instagram last night following the news that his partner Nia Riley had been in an accident with the couple's toddler, Kamryn.

He posted a picture of NIa's tattoo with his nickname, Dre, along with a message to his followers.

"My girlfriend @niariley was in a car accident and the car flipped over and our daughter was in the car," he wrote. "Need your prayers. Life is short and you never know what could happen I love them and don't know what I would do if something happened to them. God first."

The couple have been in an on-again-off-again relationship since their school days and welcomed a daughter last year.

The pair were recently seen on the VH1 reality show, Love & Hip Hop Hollywood, discussing whether they should take their relationship to the next step and move in together.

According to Soulja's rep, both Nia and Kamryn are now recovering at home and are doing well.