A month-old giraffe calf at Omaha's Henry Doorly Zoo has died.

A zoo news release says the female giraffe born on March 25 died early Wednesday morning, despite round-the-clock care by zoo veterinarians and staff.

The calf had been under veterinary care for about 10 days for multiple problems, including a bacterial infection. She appeared to have recovered, but relapsed last weekend. Staff said the still-nursing calf was not gaining weight and had become less active. Staff began bottle-feeding the calf, but it grew increasingly weaker and died around 1 a.m. Wednesday.

It's hoped a necropsy will determine the cause of death, although zoo staff say it will take weeks to receive the results.

The zoo says another giraffe born on March 16 is doing well and is on display.