Meanwhile, from a trifling cause, whence nothing was apprehended, there arose a tumult, which had nearly proved fatal to the capital. Otho had ordered the 17th cohort to be brought up to Rome from Ostia, and the charge of arming it was entrusted to Varius Crispinus, one of the tribunes of the Prætorian Guard. This officer, thinking that he could carry out the order more at his leisure, when the camp was quiet, opened the armoury, and ordered the waggons of the cohort to be laden at night-fall. The time provoked suspicion, the motive challenged accusation, the elaborate attempt at quiet ended in a disturbance, and the sight of arms among a drunken crowd excited the desire to use them. The soldiers murmured, and charged the tribunes and centurions with treachery, alleging that the households of the Senators were being armed to destroy Otho; many acted in ignorance and were stupefied by wine, the worst among them were seeking an opportunity for plunder, the mass was as usual ready for any new movement, and the military obedience of the better disposed was neutralised by the darkness. The tribune, who sought to check the movement, and the strictest disciplinarians among the centurions, were cut down. The soldiers seized their arms, bared their swords, and, mounted on their horses, made for the city and the palace.