A deputy court sheriff has died after falling from a ladder in South Africa during the attempted arrest of a vessel.

Port Elizabeth police said Henry Kemp, 42, was killed on Monday in an eight-metre plunge as he was climbing to execute a warrant, according to News 24.

Police spokesperson Andre Beetge said Kemp had boarded a pilot boat at the Port of Ngqura to reach a 33,000-gt Liberian flagged ship, which was four miles offshore.