Rihanna pulled another concert in the US due to illness.

The singer was due to perform in Houston, Texas on Monday night (April 15) but promoter Live Nation confirmed that show was shelved due to illness.

It is the third time Rihanna has cancelled a gig on her Diamonds World Tour, which is due to run throughout the year.

Her earlier cancellations were put down to a case of laryngitis, although no further details have emerged about her latest bout of illness.

Unlike earlier in her tour, Rihanna has yet to comment on the cancellation on her social networking platforms.

Instead, she paid her condolences to those affected by yesterday's (April 15) Boston Marathon bombings.