GRAND RAPIDS, Mich. (WOOD) — Grand Rapids’ John Ball Zoo has canceled a ribbon-cutting ceremony for its new pygmy hippo habitat, according to a Wednesday email.

The ribbon-cutting had been scheduled for May 30.

Last week, a pygmy hippo attacked and killed a male sitatunga — a type of antelope — named Chopper. The two were supposed to share a habitat. But during a controlled introduction, the hippo attacked Chopper, who eventually died.

The zoo will still hold a Summer Spectacular celebration.

Summer Spectacular will run from June 2 to June 4. It will include live music and special activities, according to the zoo’s website.

John Ball Zoo will also host a HippoPalooza event in July. More details will be released soon.