EMERGING MARKETS-Colombian peso weakens on oil; currencies rise in Mexico, Brazil
By Bru** Federowski and Paula Arend Laier SAO PAULO, Feb 19 (Reuters) - The Colombian peso slid on Friday amid falling oil prices, while Brazil and Mexico's currencies posted gains. In Colombia, the currency weakened 0.44 percent to 3354.1 pesos per dollar. The Brazilian real strengthened 0.60 percent and the Mexican peso was up 0.30 percent. Mexico's peso posted its biggest weekly gain since 2011 after the central bank an**unced a surprise currency intervention and interest