At 4:15 PM, near Santa Teresa, 12 miles (19 km) below San Juan Bautista, the fleet ran through an ambush with little difficulty. At 5:45 PM, at an "s" curve in the river known as the "Devil's Bend", Perry encountered Mexican fire from the
chaparral, dispersed some cavalry with the
Vesuvius, and anchored for the night intending to deal with the obstructions ahead during daylight the next day. At dusk, a lone Mexican shot one of Perry's men on the ''Vesuvius's''
forecastle. On 16 June, while investigating the obstructions, one of Perry's lieutenants, William May, was wounded, and Perry decided to lead ashore 1,173 men and ten pieces of artillery. They quickly took Acachapan, when Col. Claro Hidalgo's 600 men fled, abandoning their uneaten breakfasts. In the meantime Lieutenant
David D. Porter, on board the
Spitfire, managed to remove the
piles obstructing the river and move the steamers past by 10 AM. At one point just as Perry was approaching the Mexican defenses, Porter opened fire on them mistaking the Americans for the Mexicans. The mistake was quickly remedied, and Porter kept on moving upriver, soon reaching Fort Iturbide guarding the city from the riverbank. Two ships,
Scorpion and
Spitfire, ran past the fort and began shelling it from the rear. Porter led 68 men ashore, seized the fort, and raised the American flag. The steamers continued on to capture the town, raising the U.S. flag over the governor's house by 11:50 AM. Perry and the landing force arrived at 3:30 PM. ==Aftermath==