Just 34 seconds before the SpaceX Falcon 9 rocket was set to take off from Cape Canaveral in Florida on Sunday, all systems were ‘Go’ when – ‘hold’ was called and the launch was forced to abort. A cruise ship had sailed too close to the mission.

“We did have a cruise liner making its way toward the ‘no-go’ zone that the Coast Guard was unable to clear out,” SpaceX production manager Jessie Anderson said

“We do have a backup opportunity tomorrow, so we will try one more time tomorrow. The vehicle is still healthy, the payload is healthy, everything was looking good for an on-time liftoff today aside from the range,” she added.

The Coast Guard was reportedly investigating the incident. Two Royal Caribbean cruise liners were set to leave the port on Sunday, but it was unclear if either ship was the one that entered the “no-go” zone. In a published image a ship can clearly be seen.

The rocket launch, which will send an Earth observation satellite to the Italian Space Agency, had already been called off three times due to inclement weather conditions.

SpaceX said it was setting up for January 31 at 6:11 p.m. EST.”

This is expected to be a busy year for Elon Musk’s SpaceX, which is scheduled to launch 52 missions in 2022, the most since the company was founded in 2002.

Not everyone approves of SpaceX’s increased activity.

European Space Agency director-general Josef Aschbacher accused Musk of effectively “making the rules” with its rapid buildup of active satellites, while Chinese officials lodged a formal complaint with the United Nations, alleging China’s space station had to take evasive action to avoid a near collision with a SpaceX satellite.