The sack of Porto Bello was nothing less than an act of open war against Spain, and Modyford, now that he had taken the decisive step, was not satisfied with half measures. Before the end of October 1668 the whole fleet of privateers, ten sail and 800 men, had gone out again under Morgan to cruise on the coasts of Caracas, while Captain Dempster with several other vessels and 300 followers lay before Havana and along the shores of Campeache.[274] Modyford had written home repeatedly that if the king wished him to exercise any adequate control over the buccaneers, he must send from England two or three nimble fifth-rate frigates to command their obedience and protect the island from hostile attacks. Charles in reply to these letters sent out the "Oxford," a frigate of thirty-four guns, which arrived at Port Royal on 14th October. According to Beeston's Journal, it brought instructions countenancing the war, and empowering the governor to commission whatever persons he thought good to be partners with His Majesty in the plunder, "they finding victuals, wear and tear."[275] The frigate was immediately provisioned for a several months' cruise, and sent under command of Captain Edward Collier to join Morgan's fleet as a private ship-of-war. Morgan had appointed the Isle la Vache, or Cow Island, on the south side of Hispaniola, as the rendezvous for the privateers; and thither flocked great numbers, both English and French, for the name of Morgan was, by his exploit at Porto Bello, rendered famous in all the neighbouring islands. Here, too, arrived the "Oxford" in December. Among the French privateers were two men-of-war, one of which, the "Cour Volant" of La Rochelle, commanded by M. la Vivon, was seized by Captain Collier for having robbed an English vessel of provisions. A few days later, on 2nd January, a council of war was held aboard the "Oxford," where it was decided that the privateers, now numbering about 900 men, should attack Cartagena. While the captains were at dinner on the quarter-deck, however, the frigate blew up, and about 200 men, including five captains, were lost.[276] "I was eating my dinner with the rest," writes the surgeon, Richard Browne, "when the mainmasts blew out, and fell upon Captains Aylett, Bigford, and others, and knocked them on the head; I saved myself by getting astride the mizzenmast." It seems that out of the whole ship only Morgan and those who sat on his side of the table were saved. The accident was probably caused by the carelessness of a gunner. Captain Collier sailed in la Vivon's ship for Jamaica, where the French captain was convicted of piracy in the Admiralty Court, and reprieved by Governor Modyford, but his ship confiscated.[277]