Williams died in 1981, being replaced by George Chambers who led the country until 1986. By this time a fall in the price of oil had resulted in a recession, causing rising inflation and unemployment. The main opposition parties united under the banner of National Alliance for Reconstruction (NAR) and won the 1986 Trinidad and Tobago general election, with NAR leader A. N. R. Robinson becoming the new Prime Minister. Robinson was unable to hold together the fragile NAR coalition, and social unrest was caused by his economic reforms, such as devaluing the currency and implementing an International Monetary Fund Structural Adjustment Program. In 1990 114 members of the Jamaat al Muslimeen, led by Yasin Abu Bakr (formerly known as Lennox Phillip) stormed the Red House (the seat of Parliament), and Trinidad and Tobago Television, the only television station in the country at the time, holding Robinson and country's government hostage for six days before surrendering. The coup leaders were promised amnesty, but upon their surrender they were then arrested, but later released after protracted legal wrangling.