Two missiles have exploded in waters south of Yemen, according to maritime monitoring agencies, following months of attacks on shipping by the country’s Houthi fighters, AFP reports.

A Panama-flagged oil tanker “reported seeing two blasts” in the Gulf of Aden, said risk monitor Ambrey, a report that was corroborated by the British navy’s United Kingdom Maritime Trade Operations. No damage was reported.

Ambrey said the missiles exploded about a mile from the India-affiliated oil tanker and 200-300 metres above the waterline. UKMTO said they detonated in the water.

“The target was unclear at the time of the report. There was no damage reported,” Ambrey said, adding that vessels were calling for military assistance at the time.